feat(typescript): update and add SEMGREP_EXPRESSION entry point

[brandonspark]

I'm trying to make it so that we can use the tree-sitter-typescript parser for pattern parsing. To do this, I need to add an entry point for parsing common Typescript patterns.

Importantly, the latest versions of tree-sitter-typescript assume a testing infra structure that is only compatible with the latest versions of tree-sitter-cli. This means that although the check will probably be green, the tree-sitter combined grammar testing infrastructure does not work right now, it cannot find the tree-sitter-typescript testing suite. Fixing this requires upgrading to a more recent version of tree-sitter-cli, which is a large change.

I'd prefer to move forward with this change, since tests for test-language-typescript were failing before this PR anyways, and we do have some e2e tests that we can rely on.

Checklist

• Any new parsing code was already published, integrated, and merged into Semgrep. DO NOT MERGE THIS PR BEFORE THE SEMGREP INTEGRATION WORK WAS COMPLETED.
• Change has no security implications (otherwise, ping the security team)

[brandonspark]

• feat(typescript): update and add SEMGREP_EXPRESSION entry point #541 👈 (View in Graphite)
• main

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