fix: DRY_RUN is a string in Github Actions workflows

Author: esolitos

.github/workflows/update-cloud-samples.yml

@@ -144,8 +144,7 @@ jobs:
 
       - name: Push Zip and JSON to S3
         env:
-          # Add `--dryrun` if not on "push" event on default branch.
-          AWS_S3_OPTIONS: --color=on --no-progress ${{ env.DRY_RUN && ' --dryrun' || '' }}
+          AWS_S3_OPTIONS: --color=on --no-progress ${{ env.DRY_RUN == 'true' && ' --dryrun' || '' }}
         run: |
           # Not an app, but artifact from the setup job.
           mv ./apps/console-json ./console-json
@@ -155,6 +154,6 @@ jobs:
 
       - name: Invalidate Cloudfront Cache
         env:
-          ECHO: ${{ env.DRY_RUN &&  'echo' || '' }}
+          ECHO: ${{ env.DRY_RUN == 'true' && 'echo' || '' }}
         run: |
           $ECHO aws cloudfront create-invalidation --distribution-id "${AWS_CLOUDFRONT_DISTRIBUTION_ID}" --paths "${S3_UPLOAD_PREFIX}/*" --output text