rules_python

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The https://github.com/smacker/go-tree-sitter library seems dead and we should switch to the official https://github.com/tree-sitter/go-tree-sitter. I know there's already a lot of discussion around tree-sitter in rules_python/gazelle, I thought I should bring this into the discussion as well. This PR depends on even more patches then what https://github.com/dougthor42/go-tree-sitter is patching, I'm not sure how you want to deal with that going forward (I've found the latest rules_go solves 50% of it).

The official library has been properly maintained for some time now and has a lot of features that the smacker version is lacking. I was able to delete a decent amount of code in the js/ts gazelle extension when switching (such as all predicate filtering which is properly implemented in the official go-tree-sitter).