Update docker/metadata-action digest to a60f0f6

Author: renovate[bot]

.github/workflows/build-docker-django.yml

@@ -35,7 +35,7 @@ jobs:
       # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@ed95091677497158a9ff38b314264cd965388d5e
+        uses: docker/metadata-action@a60f0f62b5c12316066c8db464bfb2faafd7907b
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       - name: Initialize submodules

.github/workflows/build-docker-pwa.yml

@@ -35,7 +35,7 @@ jobs:
       # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
       - name: Extract metadata (tags, labels) for Docker
         id: meta
-        uses: docker/metadata-action@ed95091677497158a9ff38b314264cd965388d5e
+        uses: docker/metadata-action@a60f0f62b5c12316066c8db464bfb2faafd7907b
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
       - name: Initialize submodules