Bump OTLP proto files to 1.3.2

[Kielek]

Handles https://github.com/open-telemetry/opentelemetry-proto/releases/tag/v1.3.2

Changes

Bump OTLP proto files to 1.3.2

Merge requirement checklist

• CONTRIBUTING guidelines followed (license requirements, nullable enabled, static analysis, etc.)
• [ ] Unit tests added/updated
• [ ] Appropriate CHANGELOG.md files updated for non-trivial changes
• [ ] Changes in public API reviewed (if applicable)

Notes

Similar changes on AutoInstrumentation side open-telemetry/opentelemetry-dotnet-instrumentation#3486

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.25%. Comparing base (6250307) to head (e877030).
Report is 275 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5736      +/-   ##
==========================================
+ Coverage   83.38%   86.25%   +2.86%     
==========================================
  Files         297      254      -43     
  Lines       12531    11057    -1474     
==========================================
- Hits        10449     9537     -912     
+ Misses       2082     1520     -562     

Flag	Coverage Δ
unittests	?
unittests-Project-Experimental	86.18% <ø> (?)
unittests-Project-Stable	86.24% <ø> (?)

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

see 197 files with indirect coverage changes