Copybara PR Handler

Workflow runs for Copybara PR Handler

• ci(kokoro): install addlicense tool on pre-commit presubmits

  skipped:
  Copybara PR Handler#3:Commit22adbe1pushedbybaptmont
  main

  Jun 15, 20261s
  More actions for workflow run 3

• feat(telemetry): support per-request OpenTelemetry configuration

  failed:
  Copybara PR Handler#2:Commitabcaa08pushedbybaptmont
  main

  Jun 10, 202611s
  More actions for workflow run 2

• fix(otel): Handle empty contents in experimental semconv

  failed:
  Copybara PR Handler#1:Commitd611f11pushedbybaptmont
  main

  Jun 9, 202616s
  More actions for workflow run 1