Don't set any output if image is not pushed nor loaded

Author: sairon

actions/build-image/action.yml

@@ -139,6 +139,7 @@ runs:
         IMAGE_TAG: ${{ inputs.image-tag }}
         IMAGE_EXTRA_TAGS: ${{ inputs.image-extra-tags }}
         PUSH: ${{ inputs.push }}
+        LOAD: ${{ inputs.load }}
         VERSION: ${{ inputs.version }}
         ARCH: ${{ inputs.arch }}
         GITHUB_REPOSITORY: ${{ github.repository }}
@@ -179,11 +180,10 @@ runs:
           echo "EOF"
         } >> "$GITHUB_OUTPUT"
 
-        output="oci-mediatypes=true"
         if [[ "${PUSH}" == "true" ]]; then
-          echo "output=type=image,compression=zstd,compression-level=9,force-compression=true,${output}" >> "$GITHUB_OUTPUT"
-        else
-          echo "output=type=docker,${output}" >> "$GITHUB_OUTPUT"
+          echo "output=type=image,compression=zstd,compression-level=9,force-compression=true,oci-mediatypes=true" >> "$GITHUB_OUTPUT"
+        elif [[ "${LOAD}" == "true" ]]; then
+          echo "output=type=docker,oci-mediatypes=true" >> "$GITHUB_OUTPUT"
         fi
 
         if [[ -z "${CACHE_SCOPE}" ]]; then