[CI][Dev] Fix shellcheck SC2148 errors in ci/scripts directory

### Describe the enhancement requested

This is the sub issue #44748.


* SC2148: Add shebang

```
In ci/scripts/util_enable_core_dumps.sh line 1:
# Licensed to the Apache Software Foundation (ASF) under one
^-- SC2148 (error): Tips depend on target shell and yours is unknown. Add a shebang or a 'shell' directive.
```

### Component(s)

Continuous Integration