test: changed tag name to be latest

.github/workflows/push-docker-images.yml

@@ -18,16 +18,6 @@ jobs:
       # Use the release name as the image tag if we're building an open release branch.
       # Examples: if we're building 'open-release/maple.master', tag the image as 'maple.master'.
       # Otherwise, we must be building from a push to master, so use 'latest'.
-      - name: Get tag name
-        id: get-tag-name
-        uses: actions/github-script@v5
-        with:
-          script: |
-#            const branchName = context.ref.split('/').slice(-1)[0];
-            const tagName = 'latest';
-            console.log('Will use tag: ' + tagName);
-            return tagName;
-          result-encoding: string
 
       - name: Build and push Dev Docker image
         uses: docker/build-push-action@v1
@@ -37,7 +27,7 @@ jobs:
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
           target: dev
           repository: edxops/registrar-dev
-          tags: ${{ steps.get-tag-name.outputs.result }},${{ github.sha }}
+          tags: latest,${{ github.sha }}
 
       # - name: Build and push prod Docker image
       #   uses: docker/build-push-action@v1