chore(docker-import-digests-push-manifest): remove unused input (#1405)

* remove unused docker-metadata-json input

* prettier fix

Author: ricky-undeadcoders

actions/docker-import-digests-push-manifest/README.md

@@ -30,20 +30,21 @@ jobs:
       - name: Download Multi-Arch Digests, Construct and Upload Manifest
         uses: grafana/shared-workflows/actions/docker-import-digests-push-manifest@docker-import-digests-push-manifest/v0.0.0
         with:
-          docker-metadata-json: ${{ needs.docker-build-push-image.outputs.metadatajson }}
           gar-environment: "dev"
           images: ${{ needs.docker-build-push-image.outputs.images }}
           push: true
+          tags: |
+            latest
+            ${{ github.sha }}
 ```
 
 <!-- x-release-please-end-version -->
 
 ## Inputs
 
-| Name                   | Type    | Description                                                                                                                                                         |
-| ---------------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `docker-metadata-json` | String  | Docker metadata JSON, from `docker-build-push-image` or `docker/build-push-action`.                                                                                 |
-| `gar-environment`      | String  | Environment for pushing artifacts (can be either dev or prod). This sets the GAR Project to either `grafanalabs-dev` or `grafanalabs-global`.                       |
-| `images`               | String  | CSV of Docker images to push. These images should not include tags. Ex: us-docker.pkg.dev/grafanalabs-dev/gar-registry/image-name,docker.io/grafana/dockerhub-image |
-| `push`                 | Boolean | Whether to push the manifest to the configured registries.                                                                                                          |
-| `tags`                 | String  | List of Docker tags to be pushed.                                                                                                                                   |
+| Name              | Type    | Description                                                                                                                                                         |
+| ----------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `gar-environment` | String  | Environment for pushing artifacts (can be either dev or prod). This sets the GAR Project to either `grafanalabs-dev` or `grafanalabs-global`.                       |
+| `images`          | String  | CSV of Docker images to push. These images should not include tags. Ex: us-docker.pkg.dev/grafanalabs-dev/gar-registry/image-name,docker.io/grafana/dockerhub-image |
+| `push`            | Boolean | Whether to push the manifest to the configured registries.                                                                                                          |
+| `tags`            | String  | List of Docker tags to be pushed.                                                                                                                                   |

actions/docker-import-digests-push-manifest/action.yaml

@@ -2,10 +2,6 @@ name: Download and Merge Docker Digests into Manifest
 description: Composite action to export and upload a docker manifest
 
 inputs:
-  docker-metadata-json:
-    description: |
-      Docker metadata JSON, from `docker-build-push-image` or `docker/build-push-action`.
-    default: ""
   gar-environment:
     description: |
       Environment for pushing artifacts (can be either dev or prod).