chore(release)!: Version 3.0

[JacobCoffee]

Standing PR for the 3.0 release

Important

• Until feature freeze in 2.x, be mindful of the changes you are pulling into this branch.
• Use rebasing to bring the latest changes from main into this branch as it makes the process of merging it back into main with a merge commit when the release is due easier
• Use a merge commit without squashing when merging this branch into main to keep the history of the feature commits intact

Breaking Changes

Any breaking changes should be properly marked with ! in the conventional commits schema, e.g., fix($scope)!: fix thing but it broke stuff, feat(dtos)!: add breaking feature

[codecov]

Codecov Report

❌ Patch coverage is 98.63263% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 98.30%. Comparing base (ad8ad72) to head (6804b8a).

Files with missing lines	Patch %	Lines
litestar/handlers/base.py	95.31%	4 Missing and 2 partials ⚠️
litestar/file_system.py	97.77%	1 Missing and 3 partials ⚠️
litestar/handlers/http_handlers/_utils.py	70.00%	3 Missing ⚠️
litestar/app.py	98.76%	0 Missing and 1 partial ⚠️
...estar/handlers/websocket_handlers/route_handler.py	97.50%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3364      +/-   ##
==========================================
- Coverage   98.38%   98.30%   -0.08%     
==========================================
  Files         348      343       -5     
  Lines       15895    15815      -80     
  Branches     1756     1744      -12     
==========================================
- Hits        15638    15547      -91     
- Misses        121      130       +9     
- Partials      136      138       +2     

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