Automatically indent for `match` and `case` clauses

[brettcannon]

New in Python 3.10.

[brettcannon]

Fixing this should take updating https://github.com/microsoft/vscode-python/blob/main/src/client/language/languageConfiguration.ts and https://github.com/microsoft/vscode-python/blob/main/src/test/language/languageConfiguration.unit.test.ts.

[cdce8p]

I opened #16104 which should address this one.