ci: grant DBMS_LOCK permission directly before tests

Use podman exec to run sqlplus and grant DBMS_LOCK permission
to test user before running tests.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: tanbro

.github/workflows/python-package.yml

@@ -154,6 +154,14 @@ jobs:
           uv sync --no-dev --group test
           uv pip install mysqlclient aiomysql psycopg2 asyncpg pyodbc aioodbc oracledb
 
+      - name: Grant DBMS_LOCK permission to test user
+        run: |
+          podman exec oracledb sqlplus -s / as sysdba <<'EOF'
+          ALTER SESSION SET "_ORACLE_SCRIPT"=TRUE;
+          GRANT EXECUTE ON SYS.DBMS_LOCK TO test;
+          exit;
+          EOF
+
       - name: Run tests
         shell: bash
         env: