build: update sync config to reflect internal update (#30707)

Author: devversion

.ng-dev/google-sync-config.json

@@ -26,6 +26,7 @@
     "src/cdk/schematics/**/*",
     "src/material/schematics/**/*",
     "src/material/schematics/ng-generate/theme-color/**/*.bazel",
+    "src/material/schematics/ng-generate/theme-color/index_bundled.d.ts",
     "src/google-maps/schematics/**/*",
     "src/cdk/testing/testbed/zone-types.d.ts",
     "src/material/_theming.scss",