Add DATABRICKS_CLIENT_ID and SECRET to engine-tests-cloud

The integration test config uses OAuth (databricks-oauth) which
requires these credentials.

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

@@ -313,6 +313,8 @@ jobs:
       DATABRICKS_SERVER_HOSTNAME: ${{ secrets.DATABRICKS_SERVER_HOSTNAME }}
       DATABRICKS_HTTP_PATH: ${{ secrets.DATABRICKS_HTTP_PATH }}
       DATABRICKS_ACCESS_TOKEN: ${{ secrets.DATABRICKS_ACCESS_TOKEN }}
+      DATABRICKS_CLIENT_ID: ${{ secrets.DATABRICKS_CLIENT_ID }}
+      DATABRICKS_CLIENT_SECRET: ${{ secrets.DATABRICKS_CLIENT_SECRET }}
       DATABRICKS_CONNECT_VERSION: ${{ secrets.DATABRICKS_CONNECT_VERSION }}
       REDSHIFT_HOST: ${{ secrets.REDSHIFT_HOST }}
       REDSHIFT_PORT: ${{ secrets.REDSHIFT_PORT }}