Bump requests, fix tests

[okokes-r7]

We're running quite an outdated version of Python and dependencies (requests, urllib3).

Had to do quite a few more thing to bump these:

• bumped python in lint/test CI actions - added matrix builds to cover more versions while I was at it
• bumped actions themselves - checkout to v5, setup-python to v5
• fixed the Component class to accept an argument that the Github API sends now
• removed 'other' support - not in the API anymore
• bumped pre-commit - did not run and version black changes though, that'd balloon this PR
• fixed tests to run with the new class arg
• extended the tests to actually run the endpoints, which would've told us about the API incompatibility

[simonirwin-r7]

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