chore: bump gen-lsp-types to v0.11.0 (#27230)
## Summary
Bumps gen-lsp-types to v0.11.0, which enables all LSP enumeration types
to accept custom values. Fixes
https://github.com/astral-sh/ty/issues/4082.
## Test Plan
Tests are kept the same, only changed where necessary due to the library
change.
