Executors try to connect with local scheduler instead of remote scheduler

**Describe the bug**

I am running queries in a k8s cluster. Exectuors are receiving tasks to run so can connect to the scheduler but then I see errors such as:

```
executor 2026-04-26T21:20:33.377969Z ERROR tokio-rt-worker ThreadId(03) ballista_executor::executor_server: Fail to connect to scheduler localhost:50050 due to TonicError(tonic::transport::Error(Transport │
```

There is no scheduler on localhost within the executor pod, so this is confusing.

**To Reproduce**
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**Expected behavior**
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**Additional context**
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