Add semicolons into if statement

.github/workflows/aws_deploy.yml

@@ -104,7 +104,7 @@ jobs:
       - name: Construct environment-dependent tag
         id: tag
         run: |
-          echo "::set-output name=tag::$(if [[ ${{ inputs.environment == 'production' }} ]] then ${{ steps.latestrelease.outputs.releasetag }} else ${{ steps.timestamp.outputs.timestamp }} fi)"
+          echo "::set-output name=tag::$(if [[ ${{ inputs.environment == 'production' }} ]]; then ${{ steps.latestrelease.outputs.releasetag }}; else ${{ steps.timestamp.outputs.timestamp }}; fi)"
 
       - name: Add environment tag to existing image
         env: