Update maven-docker-pipeline.yml

Author: isaacmaffeis

.github/workflows/maven-docker-pipeline.yml

@@ -51,8 +51,8 @@ jobs:
       - name: Login to Docker Hub
         uses: docker/login-action@v3
         with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
       - name: Build and push
         uses: docker/build-push-action@v6