[RELEASE] Release opentelemetry-cpp 1.25.0

[marcalff]

Fixes #3844

Changes

Please provide a brief description of the changes here.

• Release opentelemetry-cpp 1.25.0

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.99%. Comparing base (a61d05b) to head (3f3f9fe).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3850      +/-   ##
==========================================
+ Coverage   89.98%   89.99%   +0.02%     
==========================================
  Files         225      225              
  Lines        7170     7170              
==========================================
+ Hits         6451     6452       +1     
+ Misses        719      718       -1     

see 1 file with indirect coverage changes

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[lalitb]

thanks.

[ThomsonTan]

It will be great to include #3845 in this release.