Bump typescript from 4.3.3 to 4.3.4 (#3425)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.3.3 to 4.3.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v4.3.3...v4.3.4)

---
updated-dependencies:
- dependency-name: typescript
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -71,7 +71,7 @@
     "rewire": "~5.0.0",
     "sinon": "~11.1.1",
     "tslint": "~6.1.3",
-    "typescript": "~4.3.3",
+    "typescript": "~4.3.4",
     "vsce": "~1.93.0",
     "vscode-test": "~1.5.2"
   },