build_latest_release_multi.yml consistent style for $REL refs

Author: vszakats

.github/workflows/build_latest_release_multi.yml

@@ -67,11 +67,11 @@ jobs:
       - name: 'security scan image'
         run: |
           eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
-          make image_name=localhost/curl-multi:${REL} scan
+          make image_name=localhost/curl-multi:$REL scan
       - name: 'push images to github registry'
         run: |
-          buildah manifest push --format v2s2 --all curl-multi:$REL "docker://ghcr.io/curl/curl-container/curl-multi:${REL}"
-          buildah manifest push --format v2s2 --all curl-base-multi:$REL "docker://ghcr.io/curl/curl-container/curl-base-multi:${REL}"
+          buildah manifest push --format v2s2 --all curl-multi:$REL "docker://ghcr.io/curl/curl-container/curl-multi:$REL"
+          buildah manifest push --format v2s2 --all curl-base-multi:$REL "docker://ghcr.io/curl/curl-container/curl-base-multi:$REL"
       - name: 'install Cosign'
         uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
       - name: 'write signing key to disk (only needed for `cosign sign --key`)'
@@ -90,9 +90,9 @@ jobs:
           cosign verify --key cosign.pub ghcr.io/curl/curl-container/curl-base-multi:$REL
       - name: 'push release to docker hub'
         run: |
-          buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://docker.io/curlimages/curl:${REL}"
+          buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://docker.io/curlimages/curl:$REL"
           buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://docker.io/curlimages/curl:latest"
-          buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://docker.io/curlimages/curl-base:${REL}"
+          buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://docker.io/curlimages/curl-base:$REL"
           buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://docker.io/curlimages/curl-base:latest"
       - name: 'sign images with a sigstore key'
         env:
@@ -110,9 +110,9 @@ jobs:
           cosign verify --key cosign.pub docker.io/curlimages/curl-base:latest
       - name: 'push release to quay.io'
         run: |
-          buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://quay.io/curl/curl:${REL}"
+          buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://quay.io/curl/curl:$REL"
           buildah manifest push --format v2s2 --all localhost/curl-multi:$REL "docker://quay.io/curl/curl:latest"
-          buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://quay.io/curl/curl-base:${REL}"
+          buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://quay.io/curl/curl-base:$REL"
           buildah manifest push --format v2s2 --all localhost/curl-base-multi:$REL "docker://quay.io/curl/curl-base:latest"
       - name: 'sign images with a sigstore key'
         env: