[chore] Prepare release v1.35.0/v0.129.0

[opentelemetrybot]

The following commands were run to prepare this release:

• make chlog-update VERSION=v1.35.0/v0.129.0
• make prepare-release PREVIOUS_VERSION=1[.]34[.]0 RELEASE_CANDIDATE=1.35.0 MODSET=stable
• make prepare-release PREVIOUS_VERSION=0[.]128[.]0 RELEASE_CANDIDATE=0.129.0 MODSET=beta

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.60%. Comparing base (32278ed) to head (4363f51).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #13299      +/-   ##
==========================================
- Coverage   91.62%   91.60%   -0.03%     
==========================================
  Files         522      522              
  Lines       29111    29111              
==========================================
- Hits        26674    26666       -8     
- Misses       1922     1928       +6     
- Partials      515      517       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.