Re-enable the queries cli test

* Requires that QL_PATH environment variable is set and points to a
  checkout of github/codeql
* Adds the `quiet` flag to the cli. When set, this flag will prevent
  some modal dialogs from disrupting the flow. Currently, we only ensure
  that the upgrades dialog is avoided.
* Update the main.yml workflow to checkout the codeql repo

.vscode/launch.json

@@ -86,7 +86,7 @@
       "args": [
         "--extensionDevelopmentPath=${workspaceRoot}/extensions/ql-vscode",
         "--extensionTestsPath=${workspaceRoot}/extensions/ql-vscode/out/vscode-tests/cli-integration/index",
-        "${workspaceRoot}/extensions/ql-vscode/test/data"
+        "${workspaceRoot}/extensions/ql-vscode/src/vscode-tests/cli-integration/data",
       ],
       "stopOnEntry": false,
       "sourceMaps": true,