Update to use Docker Hub registry

- Change from Quay.io to Docker Hub (andersonid/openshift-resource-governance)
- Update GitHub Actions to use DOCKERHUB_USERNAME and DOCKERHUB_TOKEN
- Update all scripts and documentation to use Docker Hub
- Add DOCKERHUB-SETUP.md with detailed setup instructions
- Update Makefile, deploy scripts, and templates
- Simplify registry references (no quay.io prefix needed)

openshift-deploy.sh

@@ -13,7 +13,7 @@ NC='\033[0m' # No Color
 # Configurações
 REPO_URL="https://github.com/andersonid/openshift-resource-governance.git"
 IMAGE_NAME="resource-governance"
-REGISTRY="quay.io/andersonid"
+REGISTRY="andersonid"
 TAG="${1:-latest}"
 NAMESPACE="resource-governance"