Bump @vscode/debugprotocol in /extensions/ql-vscode (#3742)

Bumps [@vscode/debugprotocol](https://github.com/microsoft/vscode-debugadapter-node) from 1.65.0 to 1.68.0.
- [Commits](microsoft/vscode-debugadapter-node@v1.65.0...v1.68.0)

---
updated-dependencies:
- dependency-name: "@vscode/debugprotocol"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

extensions/ql-vscode/package-lock.json

@@ -1974,7 +1974,7 @@
     "@octokit/rest": "^21.0.2",
     "@vscode/codicons": "^0.0.36",
     "@vscode/debugadapter": "^1.59.0",
-    "@vscode/debugprotocol": "^1.65.0",
+    "@vscode/debugprotocol": "^1.68.0",
     "@vscode/webview-ui-toolkit": "^1.0.1",
     "ajv": "^8.11.0",
     "child-process-promise": "^2.2.1",