v1.1.0: ConfigMap injection and improved robustness

What's Changed

• Add configmap_values input to inject runtime values into ConfigMaps
• Remove unnecessary namespace/fullname outputs (use kustomize-inspect instead)
• Improve annotation/label processing (handle comments, support both : and = formats)
• Add debug input for troubleshooting
• Update documentation with clearer examples

Breaking Changes

• Removed namespace and fullname outputs - use kustomize-inspect action instead