chore: remove skipLibCheck: true from tsconfigs where it is not necessary

[pichlermarc]

skipLibCheck: true is set a few instrumentation libraries, even though they're not necessary anymore. The only remaining instrumentation that needs it is @opentelemetry/instrumentation-lru-memoizer.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.46%. Comparing base (dfb2dff) to head (fdf76cd).
Report is 94 commits behind head on main.

❗ Current head fdf76cd differs from pull request most recent head 655ecf3. Consider uploading reports for the commit 655ecf3 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2165      +/-   ##
==========================================
- Coverage   90.97%   90.46%   -0.52%     
==========================================
  Files         146      147       +1     
  Lines        7492     7580      +88     
  Branches     1502     1574      +72     
==========================================
+ Hits         6816     6857      +41     
- Misses        676      723      +47     

see 30 files with indirect coverage changes

[david-luna]

even though they're not necessary anymore...

LGTM but could I get more context on this? Thanks!

[pichlermarc]

even though they're not necessary anymore...

LGTM but could I get more context on this? Thanks!

We've seen this cause some confusion over at #1985.

It looks like some instrumentations had set skipLibCheck: true. I assume this to be either an unintentional copy-paste from an existing instrumentation that had this option set, or it was necessary back then due to actually missing types. Either way, nowadays, the instrumentation compile fine without that flag, so I think it's best to revert to the more common strict config that we use.

[blumamir]

The only remaining instrumentation that needs it is @opentelemetry/instrumentation-lru-memoizer.

curious why this instrumentation still need the setting

[pichlermarc]

The only remaining instrumentation that needs it is @opentelemetry/instrumentation-lru-memoizer.

curious why this instrumentation still need the setting

There's some problem with the lru-cache types. I looked into it briefly but couldn't find any way to resolve the situation. I think this may be a problem with the upstream packages we use.