Add AWS_REGION and ATHENA_WORK_GROUP to engine-tests-cloud

Both are required by the Athena integration test config.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: eakmanrq <6326532+eakmanrq@users.noreply.github.com>

Author: eakmanrq

.github/workflows/pr.yaml

@@ -333,8 +333,10 @@ jobs:
       GCP_POSTGRES_USER: ${{ secrets.GCP_POSTGRES_USER }}
       GCP_POSTGRES_PASSWORD: ${{ secrets.GCP_POSTGRES_PASSWORD }}
       ATHENA_S3_WAREHOUSE_LOCATION: ${{ secrets.ATHENA_S3_WAREHOUSE_LOCATION }}
+      ATHENA_WORK_GROUP: ${{ secrets.ATHENA_WORK_GROUP }}
       AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      AWS_REGION: ${{ secrets.AWS_REGION }}
       FABRIC_HOST: ${{ secrets.FABRIC_HOST }}
       FABRIC_CLIENT_ID: ${{ secrets.FABRIC_CLIENT_ID }}
       FABRIC_CLIENT_SECRET: ${{ secrets.FABRIC_CLIENT_SECRET }}