Fix scenario commands visibility

When the mock GitHub API server setting was moved to the top-level, we
forgot the comamnds in the `package.json`. This updates the commands to
have the correct visibility.

See: #1643

Author: koesie10

extensions/ql-vscode/package.json

@@ -1119,15 +1119,15 @@
         },
         {
           "command": "codeQL.mockGitHubApiServer.startRecording",
-          "when": "config.codeQL.variantAnalysis.mockGitHubApiServer && !codeQL.mockGitHubApiServer.recording"
+          "when": "config.codeQL.mockGitHubApiServer.enabled && !codeQL.mockGitHubApiServer.recording"
         },
         {
           "command": "codeQL.mockGitHubApiServer.saveScenario",
-          "when": "config.codeQL.variantAnalysis.mockGitHubApiServer && codeQL.mockGitHubApiServer.recording"
+          "when": "config.codeQL.mockGitHubApiServer.enabled && codeQL.mockGitHubApiServer.recording"
         },
         {
           "command": "codeQL.mockGitHubApiServer.cancelRecording",
-          "when": "config.codeQL.variantAnalysis.mockGitHubApiServer && codeQL.mockGitHubApiServer.recording"
+          "when": "config.codeQL.mockGitHubApiServer.enabled && codeQL.mockGitHubApiServer.recording"
         }
       ],
       "editor/context": [