chore: Add commit_patterns to changelog config, remove auto-labeler

[sentrivana]

Description

Adapting to the new commit_patterns changelog generation feature in Craft: https://github.com/getsentry/craft?tab=readme-ov-file#changelog-policies

Issues

Reminders

• Please add tests to validate your changes, and lint your code using tox -e linters.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.92%. Comparing base (254f618) to head (cba05ae).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5176      +/-   ##
==========================================
- Coverage   83.95%   83.92%   -0.03%     
==========================================
  Files         181      181              
  Lines       18340    18340              
  Branches     3260     3260              
==========================================
- Hits        15397    15392       -5     
- Misses       1937     1943       +6     
+ Partials     1006     1005       -1     

see 4 files with indirect coverage changes