fix: callback types

[simPod]

No description provided.

[simPod]

@copilot

[Copilot]

@simPod I've opened a new pull request, #246, to work on those changes. Once the pull request is ready, I'll request review from you.

[Copilot]

Pull Request Overview

This PR standardizes PHPDoc callable type annotations by removing spaces around colons and properly adding nullable union syntax.

• Removed spaces around colons in callable type signatures (e.g., callable() : void → callable():void)
• Added nullable union syntax to optional callable parameters using |null instead of implicit nullability
• Applied consistent formatting across all method docblocks in the KafkaConsumer class

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.36%. Comparing base (979cd87) to head (6454487).
⚠️ Report is 16 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #245      +/-   ##
==========================================
+ Coverage   70.40%   71.36%   +0.95%     
==========================================
  Files           9        9              
  Lines         223      213      -10     
==========================================
- Hits          157      152       -5     
+ Misses         66       61       -5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.