chore: format project to latest fomatter version

[WilliamBergamin]

Summary

These changes where created by running the formatter, this should not change any behavior

Aims to help maintainers open follow up PRs

Testing

N/A CI will be sufficient

Category

• slack_bolt.App and/or its core components
• slack_bolt.async_app.AsyncApp and/or its core components
• Adapters in slack_bolt.adapter
• Document pages under /docs
• Others

Requirements

Please read the Contributing guidelines and Code of Conduct before creating this issue or pull request. By submitting, you are agreeing to those rules.

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've run ./scripts/install_all_and_run_tests.sh after making the changes.

[codecov]

Codecov Report

❌ Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 90.67%. Comparing base (4d15431) to head (5f8c386).
⚠️ Report is 1 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
slack_bolt/middleware/assistant/assistant.py	75.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1460   +/-   ##
=======================================
  Coverage   90.67%   90.67%           
=======================================
  Files         226      226           
  Lines        7205     7205           
=======================================
  Hits         6533     6533           
  Misses        672      672           

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