chore: Reverts formatting changes to external files, adds formatting changes to proto files

[bthomee]

High Level Overview of Change

This change reverts the formatting applied to external files and adds formatting of proto files.

As clang-format will complain if a proto file is modified or moved, since the .clang-format file does not explicitly contain a section for proto files, the change has been included in this PR as well.

Context of Change

In #5657 the external files were formatted, which should not have been done. Our codebase further contains proto files, which need to be formatted too.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking change that only restructures code)
• Performance (increase or change in throughput and/or latency)
• Tests (you added tests for code that already exists, or your new feature included in this PR)
• Documentation update
• Chore (no impact to binary, e.g. .gitignore, formatting, dropping support for older tooling)
• Release

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.7%. Comparing base (fb89213) to head (219f9f6).
⚠️ Report is 7 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop   #5711     +/-   ##
=========================================
- Coverage     78.8%   78.7%   -0.1%     
=========================================
  Files          814     814             
  Lines        71305   71640    +335     
  Branches      8351    8442     +91     
=========================================
+ Hits         56196   56361    +165     
- Misses       15109   15279    +170     

see 201 files with indirect coverage changes

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[Bronek]

Nice !