fix(schema): fix FUTEX_E flags parameter

[gnosek]

The correct type is PT_FLAGS, not PT_ENUMFLAGS, as FUTEX_PRIVATE_FLAG and FUTEX_CLOCK_REALTIME are bitwise-or'ed with the other values.

The change is ABI-compatible and no driver changes are needed.

What type of PR is this?

Uncomment one (or more) /kind <> lines:

/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

Any specific area of the project related to this PR?

Uncomment one (or more) /area <> lines:

/area API-version

/area build

/area CI

/area driver-kmod

/area driver-bpf

/area driver-modern-bpf

/area libscap-engine-bpf

/area libscap-engine-gvisor

/area libscap-engine-kmod

/area libscap-engine-modern-bpf

/area libscap-engine-nodriver

/area libscap-engine-noop

/area libscap-engine-source-plugin

/area libscap-engine-savefile

/area libscap

/area libpman

/area libsinsp

/area tests

/area proposals

Does this PR require a change in the driver versions?

/version driver-API-version-major

/version driver-API-version-minor

/version driver-API-version-patch

/version driver-SCHEMA-version-major

/version driver-SCHEMA-version-minor

/version driver-SCHEMA-version-patch

What this PR does / why we need it:

Which issue(s) this PR fixes:

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gnosek

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[poiana]

LGTM label has been added.

Git tree hash: a39018851a58dc2773e7f188a68217dc3a5693ad

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.02%. Comparing base (9d2d151) to head (0fa656e).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2046      +/-   ##
==========================================
- Coverage   74.03%   74.02%   -0.01%     
==========================================
  Files         254      254              
  Lines       31112    31112              
  Branches     5418     5436      +18     
==========================================
- Hits        23033    23032       -1     
- Misses       8052     8079      +27     
+ Partials       27        1      -26     

Flag	Coverage Δ
libsinsp	74.02% <ø> (-0.01%)	⬇️

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[leogr]

/milestone 0.18.0

[github-actions]

Perf diff from master - unit tests

     4.79%     -0.90%  [.] sinsp_parser::process_event
     9.70%     +0.89%  [.] sinsp_parser::reset
     1.22%     -0.68%  [.] sinsp_evt::get_direction
     6.29%     -0.58%  [.] sinsp_evt::get_type
     1.06%     +0.47%  [.] sinsp_parser::parse_context_switch
     1.45%     -0.44%  [.] libsinsp::sinsp_suppress::process_event
     2.01%     +0.44%  [.] scap_event_decode_params
     3.55%     -0.43%  [.] sinsp_thread_manager::find_thread
     4.19%     -0.43%  [.] gzfile_read
     0.79%     +0.42%  [.] sinsp_filter_check::parse_field_name

Heap diff from master - unit tests

peak heap memory consumption: 7.22K
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Heap diff from master - scap file

peak heap memory consumption: 0B
peak RSS (including heaptrack overhead): 0B
total memory leaked: 0B

Benchmarks diff from master

Comparing gbench_data.json to /root/actions-runner/_work/libs/libs/build/gbench_data.json
Benchmark                                                         Time             CPU      Time Old      Time New       CPU Old       CPU New
----------------------------------------------------------------------------------------------------------------------------------------------
BM_sinsp_split_mean                                            -0.0042         -0.0041           145           145           145           145
BM_sinsp_split_median                                          -0.0045         -0.0044           145           145           145           145
BM_sinsp_split_stddev                                          -0.0724         -0.0724             1             1             1             1
BM_sinsp_split_cv                                              -0.0684         -0.0686             0             0             0             0
BM_sinsp_concatenate_paths_relative_path_mean                  +0.0026         +0.0027            42            42            42            42
BM_sinsp_concatenate_paths_relative_path_median                +0.0024         +0.0025            42            42            42            42
BM_sinsp_concatenate_paths_relative_path_stddev                -0.3876         -0.3871             0             0             0             0
BM_sinsp_concatenate_paths_relative_path_cv                    -0.3891         -0.3887             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_mean                     -0.0154         -0.0153            17            17            17            17
BM_sinsp_concatenate_paths_empty_path_median                   -0.0147         -0.0145            17            17            17            17
BM_sinsp_concatenate_paths_empty_path_stddev                   -0.1609         -0.1617             0             0             0             0
BM_sinsp_concatenate_paths_empty_path_cv                       -0.1478         -0.1487             0             0             0             0
BM_sinsp_concatenate_paths_absolute_path_mean                  +0.0455         +0.0456            43            45            43            45
BM_sinsp_concatenate_paths_absolute_path_median                +0.0468         +0.0469            43            45            43            45
BM_sinsp_concatenate_paths_absolute_path_stddev                +0.1698         +0.1701             0             0             0             0
BM_sinsp_concatenate_paths_absolute_path_cv                    +0.1188         +0.1190             0             0             0             0
BM_sinsp_split_container_image_mean                            -0.0196         -0.0195           349           342           349           342
BM_sinsp_split_container_image_median                          -0.0213         -0.0212           350           342           349           342
BM_sinsp_split_container_image_stddev                          -0.4664         -0.4656             3             2             3             2
BM_sinsp_split_container_image_cv                              -0.4557         -0.4549             0             0             0             0