Add missed package version bump override (#82593)

In https://github.com/flutter/flutter/pull/82577, I landed a version
bump of package shelf and package flutter_template_images. This local
override should have been part of that patch but was missed in the
checkin.

The version bumps themselves happened in the previous patch; this just
ensures we don't accidentally 'upgrade' back to version 1.0.2.

packages/flutter_tools/lib/src/commands/update_packages.dart

@@ -27,7 +27,7 @@ const Map<String, String> _kManuallyPinnedDependencies = <String, String>{
   // Therefore, we control the version of flutter_gallery_assets so that
   // existing tests do not fail when the package has a new version.
   'flutter_gallery_assets': '^1.0.1',
-  'flutter_template_images': '1.0.1', // Must always exactly match flutter_tools template.
+  'flutter_template_images': '3.0.0', // Must always exactly match flutter_tools template.
   'mockito': '4.1.1+1', // Prevent mockito from upgrading to the source gen version.
   // DART TEAM OWNED NNBD DEPS
   'archive': '">=3.0.0-nullsafety.0"',