flink-sql-runner support arm os arch

observed error 

```bash
Defaulted container "flink-main-container" out of: flink-main-container, init-create-dir (init), wait-for-database (init), download-s3-files (init)
exec /docker-entrypoint.sh: exec format error
```

when trying to run flink pod in sqrlpipeline chart on arm64 machine (for cost saving purpose)