Update release workflow to use S3 bucket name from secrets (#3120)

Task/Issue URL: https://app.asana.com/0/1203301625297703/1207742599080399/f

Description:
This change uses S3 bucket name and prefix from GHA secrets instead of GHA variables.

.github/workflows/release.yml

@@ -114,7 +114,7 @@ jobs:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
         AWS_DEFAULT_REGION: ${{ vars.AWS_DEFAULT_REGION }}
-        DSYM_S3_PATH: s3://${{ vars.DSYM_BUCKET_NAME }}/${{ vars.DSYM_BUCKET_PREFIX }}/
+        DSYM_S3_PATH: s3://${{ secrets.DSYM_BUCKET_NAME }}/${{ secrets.DSYM_BUCKET_PREFIX }}/
       run: |
         if [[ -f ${{ env.dsyms_path }} ]]; then
           aws s3 cp "${{ env.dsyms_path }}" ${{ env.DSYM_S3_PATH }}