Bump CLI version from v2.15.5 to v2.16.0 for integration tests (#3243)

Co-authored-by: github-actions[bot] <github-actions@github.com>

Author: github-actions[bot]

extensions/ql-vscode/supported_cli_versions.json

@@ -1,4 +1,5 @@
 [
+  "v2.16.0",
   "v2.15.5",
   "v2.14.6",
   "v2.13.5",