fix(exporter-logs/trace-otlp-grpc): fix error for missing dependency otlp-exporter-base

[JamieDanielson]

Which problem is this PR solving?

#5031 was a large refactor for OTLP exporters, and a dependency that was previously listed as a dev dependency is now required as a production dependency. Upgrading to experimental/v0.56.0 caused an error in Yarn PnP:

2025-01-09T01:35:53.432Z   220 U Error: @opentelemetry/exporter-logs-otlp-grpc tried to access @opentelemetry/otlp-exporter-base, but it isn't declared in its dependencies; this makes the require call ambiguous and unsound.

Short description of the changes

• move @opentelemetry/otlp-exporter-base to be production dependency

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• I am working on a separate PR to add knip to this repo (we have it on contrib already) and make the other changes suggested by knip. For this one specifically I confirmed before and after for Unlisted Dependencies by adding this lint:deps command to the root package.json and running locally.

"lint:deps": "npx --yes knip@5.33.3 --dependencies --production --strict",

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.64%. Comparing base (f9fda8b) to head (ffae5b9).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5412      +/-   ##
==========================================
- Coverage   94.65%   94.64%   -0.02%     
==========================================
  Files         317      317              
  Lines        8025     8025              
  Branches     1687     1687              
==========================================
- Hits         7596     7595       -1     
- Misses        429      430       +1     

see 1 file with indirect coverage changes

[pichlermarc]

thank you @JamieDanielson - can you backport this to the v1.x branch? Then I'll cut a bugfix release.