Proper argument

Author: gvegayon

twostep-container-build/action.yml

@@ -188,7 +188,7 @@ runs:
         # Inspecting the image
         python ${GITHUB_ACTION_PATH}/scripts/compare_images.py \
           --image ${{ inputs.registry }}${{ inputs.image }}:dependencies-${{ steps.image-tag.outputs.tag }} \
-          --hash ${{ inputs.first-step-cache-key }} \
+          --key ${{ inputs.first-step-cache-key }} \
           --output $GITHUB_OUTPUT
           --label TWO_STEP_BUILD_CACHE_KEY