Bump @typescript-eslint/eslint-plugin in /extensions/ql-vscode

Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 6.13.2 to 6.15.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v6.15.0/packages/eslint-plugin)

---
updated-dependencies:
- dependency-name: "@typescript-eslint/eslint-plugin"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

extensions/ql-vscode/package-lock.json

@@ -1993,7 +1993,7 @@
     "@types/webpack": "^5.28.0",
     "@types/webpack-env": "^1.18.0",
     "@types/yauzl": "^2.10.3",
-    "@typescript-eslint/eslint-plugin": "^6.2.1",
+    "@typescript-eslint/eslint-plugin": "^6.15.0",
     "@typescript-eslint/parser": "^6.15.0",
     "@vscode/test-electron": "^2.2.0",
     "@vscode/vsce": "^2.19.0",