[SEMANTIC CONVENTIONS] Upgrade to semantic conventions 1.30.0

[marcalff]

Changes

Please provide a brief description of the changes here.

• Upgrade to semantic conventions 1.30.0
• Upgrade to weaver 0.12.0

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[netlify]

✅ Deploy Preview for opentelemetry-cpp-api-docs canceled.

Name	Link
🔨 Latest commit	31b3ac1
🔍 Latest deploy log	https://app.netlify.com/sites/opentelemetry-cpp-api-docs/deploys/6799469e641de00009a86d56

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.78%. Comparing base (18e06f1) to head (31b3ac1).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3258      +/-   ##
==========================================
- Coverage   87.80%   87.78%   -0.01%     
==========================================
  Files         198      198              
  Lines        6324     6324              
==========================================
- Hits         5552     5551       -1     
- Misses        772      773       +1     

see 1 file with indirect coverage changes