chore: quote annotations

Author: rjaegers

.github/workflows/build-push.yml

@@ -135,9 +135,9 @@ jobs:
         working-directory: ${{ runner.temp }}/digests
         run: |
           set -Eeuo pipefail
-          docker buildx imagetools create \
+            docker buildx imagetools create \
             $(echo '${{ steps.metadata.outputs.json }}' | jq -r '.tags | map("--tag " + .) | join(" ")') \
-            $(echo '${{ steps.metadata.outputs.json }}' | jq -r '.annotations | map("--annotation " + .) | join(" ")') \
+            $(echo '${{ steps.metadata.outputs.json }}' | jq -r '.annotations | map("--annotation \"" + . + "\"") | join(" ")') \
             $(printf '${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@sha256:%s ' *)
       - name: Inspect manifest and extract digest
         id: inspect-manifest