chore: remove redundant extension on Dockerfiles

Our Dockerfiles don't need these extensions so drop them.

Author: cardoe

.github/workflows/build-container-images.yaml

@@ -43,7 +43,7 @@ jobs:
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
           context: containers/python311_alpine/
-          file: containers/python311_alpine/Dockerfile.python311_alpine
+          file: containers/python311_alpine/Dockerfile
           # push for all main branch commits
           push: ${{ github.event_name != 'pull_request' }}
           tags: ghcr.io/${{ github.repository }}/argo-python3.11.8-alpine3.19:latest,ghcr.io/${{ github.repository }}/argo-python3.11.8-alpine3.19:${{ env.VERSION_PYTHON311 }}
@@ -54,7 +54,7 @@ jobs:
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
           context: containers/python312_alpine/
-          file: containers/python312_alpine/Dockerfile.python312_alpine
+          file: containers/python312_alpine/Dockerfile
           # push for all main branch commits
           push: ${{ github.event_name != 'pull_request' }}
           tags: ghcr.io/${{ github.repository }}/argo-python3.12.2-alpine3.19:latest,ghcr.io/${{ github.repository }}/argo-python3.12.2-alpine3.19:${{ env.VERSION_PYTHON312 }}

.github/workflows/containers.yaml

@@ -66,7 +66,7 @@ jobs:
       - name: build and deploy openstack container image to registry
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
-          file: containers/${{ matrix.project }}/Dockerfile.${{ matrix.project }}
+          file: containers/${{ matrix.project }}/Dockerfile
           build-args: OPENSTACK_VERSION=${{ env.OPENSTACK_VERSION }}
           pull: true  # ensure we always have an up to date source
           push: true
@@ -110,7 +110,7 @@ jobs:
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
           context: "{{defaultContext}}:containers/dnsmasq"
-          file: Dockerfile.dnsmasq
+          file: Dockerfile
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
@@ -159,7 +159,7 @@ jobs:
       - name: build and deploy container image to registry
         uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6
         with:
-          file: containers/${{ matrix.container.name }}/Dockerfile.${{ matrix.container.name }}
+          file: containers/${{ matrix.container.name }}/Dockerfile
           pull: true  # ensure we always have an up to date source
           push: true
           tags: ${{ steps.meta.outputs.tags }}