feat: add sameSite parameter to unset_cookie

[TigreModerata]

Summary of Changes

Added samesite parameter to unset_cookies, defaulting to 'Lax'. Tests: added a test case to test_unset_cookies and to on_get in CookieUnset Docs: added explanation of new parameter to cookies.rst

Related Issues

Fixes #2124

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[codecov[bot]]

Codecov Report

Merging #2140 (c5a0b88) into master (16d4710) will not change coverage. The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master     #2140   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           62        62           
  Lines         6789      6789           
  Branches      1095      1095           
=========================================
  Hits          6789      6789           

Impacted Files	Coverage Δ
falcon/response.py	100.00% <100.00%> (ø)

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[TigreModerata]

Excellent, thanks for the comments, I'll push an update asap!

[TigreModerata]

You need to revert docs/changes/4.0.0.rst -- we don't want to render that file yet, we'll probably do that at some time around the first beta release.

Done

[CaselIT]

Thanks! 👍 (I'll tweak the newsfragment later a bit because we have some others that require more cleanup anyway.)

should also add @TigreModerata to the contridutors

[vytas7]

Yes, we run that script from time to time now, particularly before releases :slightly_smiling_face:

[CaselIT]

forgot we automated that!

[TigreModerata]

Thanks to all - I will try to contribute more in the future, when I know how :)

[vytas7]

Thank you for contributing @TigreModerata! If you want to take one more issue, let us know :slightly_smiling_face: https://github.com/falconry/falcon/issues/1010 might be a good one for new contributors, but you can of course pick whatever you like.