Bump prettier from 3.5.3 to 3.6.1 in /extensions/ql-vscode

---
updated-dependencies:
- dependency-name: prettier
  dependency-version: 3.6.1
  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

@@ -2102,7 +2102,7 @@
     "markdownlint-cli2-formatter-pretty": "^0.0.7",
     "npm-run-all": "^4.1.5",
     "patch-package": "^8.0.0",
-    "prettier": "^3.5.3",
+    "prettier": "^3.6.1",
     "storybook": "^8.6.14",
     "tar-stream": "^3.1.7",
     "through2": "^4.0.2",