Use the new IOS_DSYM_BUCKET_PREFIX in the release workflow (#3798)

Task/Issue URL: https://app.asana.com/0/72649045549333/1209141686015365/f
Tech Design URL:
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Description:

This PR updates workflows to replace usage of DSYM_BUCKET_PREFIX with IOS_DSYM_BUCKET_PREFIX. This new secret has already been added to the repo, using the value mentioned in this doc.

.github/workflows/release.yml

@@ -113,7 +113,7 @@ jobs:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
         AWS_DEFAULT_REGION: ${{ vars.AWS_DEFAULT_REGION }}
-        DSYM_S3_PATH: s3://${{ secrets.DSYM_BUCKET_NAME }}/${{ secrets.DSYM_BUCKET_PREFIX }}/
+        DSYM_S3_PATH: s3://${{ secrets.DSYM_BUCKET_NAME }}/${{ secrets.IOS_DSYM_BUCKET_PREFIX }}/
       run: |
         if [[ -f ${{ env.dsyms_path }} ]]; then
           aws s3 cp "${{ env.dsyms_path }}" ${{ env.DSYM_S3_PATH }}