[typescript] regenerate parser for TS-specific Semgrep pattern positions

[brandonspark]

Summary

Regenerated parser sources from the upstream grammar fix in semgrep/ocaml-tree-sitter-semgrep#588. The new parser admits decorator-only Semgrep patterns (LANG-477), bare types and type predicates plus .../metavariables in any type-position slot (LANG-489), ... inside interface bodies and object-type literals (LANG-500), ... inside enum bodies (LANG-502), and <...> in generic-parameter lists plus ... as a mapped-type value (LANG-504).

Companion PRs:

• [typescript] fix Semgrep pattern parsing for TS-specific positions (decorators, types, interfaces, enums) ocaml-tree-sitter-semgrep#588 (grammar source)
• [tsx] regenerate parser for TS-specific Semgrep pattern positions semgrep-tsx#2 (sibling regeneration)

Test plan

• Pull this submodule into semgrep and run make test.
• Spot-check Semgrep rules using @$DEC, interface $I { ... }, type T = ..., enum $E { ... }, and function $F<...>(...) { ... } patterns.

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