Bump tree-sitter and grammars to >= 0.21.0

[jpulec]

Is your feature request related to a problem?

The newer versions of tree-sitter and its grammars use prebuildify which means that you don't need to run postinstall scripts to get the necessary built bindings. This makes things much nicer for any projects that are downstream.

Describe the solution you'd like

Bump to later versions of tree-sitter and its grammars.

Describe alternatives you've considered

N/A