Only use default tag when in pull request

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
         run: |
           echo "DEFAULT_TAG=pr-${PULL_REQUEST_NUMBER}" >> ${GITHUB_ENV}
 
-      - name: Setup other dependencies
+      - name: Setup Podman and other dependencies
         shell: bash
         run: |
           sudo apt-get update
@@ -133,16 +133,14 @@ jobs:
 
       - name: Build Image
         id: build_image
-        uses: redhat-actions/buildah-build@7a95fa7ee0f02d552a32753e7414641a04307056 # v2
-        with:
-          containerfiles: |
-            ./Containerfile
-          image: ${{ env.IMAGE_NAME }}
-          tags: ${{ steps.metadata.outputs.tags }}
-          oci: false
-          build-args: |
-            BASE_IMAGE=${BASE_IMAGE}
-            FEDORA_VERSION=${FEDORA_VERSION}
+        shell: bash
+        run: |
+          buildah bud \
+            --format docker \
+            --tag "localhost/${IMAGE_NAME}:${DEFAULT_TAG}" \
+            --build-arg BASE_IMAGE=${BASE_IMAGE} \
+            --build-arg FEDORA_VERSION=${FEDORA_VERSION} \
+            -f ./Containerfile
 
       # These `if` statements are so that pull requests for your custom images do not make it publish any packages under your name without you knowing
       # They also check if the runner is on the default branch so that things like the merge queue (if you enable it), are going to work
@@ -184,7 +182,7 @@ jobs:
         with:
           registry: ${{ env.IMAGE_REGISTRY }}
           image: ${{ env.IMAGE_NAME }}
-          tags: ${{ steps.metadata.outputs.tags }}
+          tags: ${{ github.event_name != 'pull_request' && steps.metadata.outputs.tags || env.DEFAULT_TAG }}
           username: ${{ env.REGISTRY_USER }}
           password: ${{ env.REGISTRY_PASSWORD }}