ci: update github robot config to reflect update in syncing (#45907)

The `ng_module` Starlark code is not used internally, just
`ngc-wrapped`.

PR Close #45907

.github/angular-robot.yml

@@ -45,6 +45,7 @@ merge:
       - 'packages/bazel/src/*'
       - 'packages/bazel/src/api-extractor/**'
       - 'packages/bazel/src/builders/**'
+      - 'packages/bazel/src/ng_module/**'
       - 'packages/bazel/src/ng_package/**'
       - 'packages/bazel/src/protractor/**'
       - 'packages/bazel/src/schematics/**'