test: ignore LSP tests affected by tsconfig.deno.json generation
Temporarily ignore definitely_typed_fallback and type_reference_import_meta
LSP tests. These fail because the generated tsconfig.deno.json with
"types": ["deno"] is picked up by Deno's own LSP which can't resolve
@types/deno from node_modules.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>