chore: prepare next release

[opentelemetrybot]

1.28.0

🚀 (Enhancement)

• feat: update semantic conventions to 1.28.0 #5181 @trentm

📚 (Refine Doc)

• chore: Improve documentation on entry-points (top-level and "incubating") and on deprecations. #5025 @trentm

🏠 (Internal)

• chore: Update the comments of some deprecated constants to point to the currently relevant replacement constant, if any. #5160 @trentm
• chore: Minor improvements to formatting of comments. #5100 @trentm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.59%. Comparing base (d8bc6b2) to head (d583c89).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5186   +/-   ##
=======================================
  Coverage   94.59%   94.59%           
=======================================
  Files         314      314           
  Lines        7993     7993           
  Branches     1611     1611           
=======================================
  Hits         7561     7561           
  Misses        432      432           

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles

[trentm]

• publish workflow: https://github.com/open-telemetry/opentelemetry-js/actions/runs/11941235786/job/33285622475

[trentm]

• GH release: https://github.com/open-telemetry/opentelemetry-js/releases/tag/semconv%2Fv1.28.0

There isn't a git tag (yet) because I'm not sure if part of the release process is meant to ahve done that automatically.

[trentm]

There is a git tag now: https://github.com/open-telemetry/opentelemetry-js/tree/semconv/v1.28.0