fix build for s390x and ppc64le

[msherif1234]

ppc64le and s390x for some reason they use uint8 instead of int8 for this type
https://pkg.go.dev/syscall#Utsname
leading to this build error

6.662 pkg/utils/utils.go:80:54: cannot use buf.Release[:] (value of type []uint8) as []int8 value in argument to utsnameStr

Fix to create two instances of utils package based on arch check

• unit-tests

 docker images
REPOSITORY                               TAG            IMAGE ID       CREATED          SIZE
quay.io/mmahmoud/netobserv-ebpf-agent    main-s390x     bd818f928693   24 seconds ago   117MB
quay.io/mmahmoud/netobserv-ebpf-agent    main-amd64     1b01b143841e   5 minutes ago    118MB
quay.io/netobserv/netobserv-ebpf-agent   main-amd64     1b01b143841e   5 minutes ago    118MB
quay.io/mmahmoud/netobserv-ebpf-agent    main-ppc64le   b01ba81f8e67   6 minutes ago    141MB

[codecov]

Codecov Report

Merging #151 (5858f39) into main (4a182aa) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main     #151   +/-   ##
=======================================
  Coverage   39.25%   39.25%           
=======================================
  Files          31       31           
  Lines        2214     2214           
=======================================
  Hits          869      869           
  Misses       1296     1296           
  Partials       49       49           

Flag	Coverage Δ
unittests	39.25% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/utils/utils.go	46.42% <0.00%> (ø)

[memodi]

/ok-to-test

[github-actions]

New image: quay.io/netobserv/netobserv-ebpf-agent:96e75c6. It will expire after two weeks.

[stleerh]

There's no need to create a duplicate file to handle the different architectures. Just use generics instead. Change:
func utsnameStr(in []int8) string {

to:
func utsnameStr[T int8 | uint8](in []T) string {

[msherif1234]

/ok-to-test

[github-actions]

New image:
quay.io/netobserv/netobserv-ebpf-agent:dd3ced3

It will expire after two weeks.

To deploy this build, run from the operator repo, assuming the operator is running:

USER=netobserv VERSION=dd3ced3 make set-agent-image

[stleerh]

/lgtm but might want to add a comment

[msherif1234]

/approve

[openshift-ci]

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