* fix: add handle for resolveExternalUri
This adds a fix to properly handle `resolveExternalUri` which is used by
extensions like Tabnine.
* fixup!: update patch
* fixup!: force update proxy patch
* fixup!: use proxyEndpointTemplate else manually add
* fixup!: throw error if productConfiguration missing
* feat(testing): add asExternalUri
This modifies the test extension used in e2e test by registering a new
command for testing `asExternalUri`.
* feat: add e2e test for asExternalUri
* docs: update playwright setup comments
* feat: add support for VSCODE_PROXY_URI
* chore: refresh patches
* feat: add test for VSCODE_PROXY_URI
* chore: add metadata to lang extension
* fixup!: fix part of service-worker patch
* fixup!: remove e2e test, update patch notes
* fixup!: refresh disable-downloads
* fixup!: formatting
* Add test extension
This will let us test extension-related features (like the proxy URI).
I removed the environment variables in the script because they override
the ones you set yourself. We still set defaults in constants.ts.
* Add changelog entry for VSCODE_PROXY_URI
* Add terminal test for VSCODE_PROXY_URI
* Update VS Code
This adds the VSCODE_PROXY_URI environment variable.
