[Bug]: bazel coverage //example/sharding:test produce multiple coverate.dat files

### What happened?

`bazel coverage //example/sharding:test` produce multiple coverate.dat files

### Version

Development (host) and target OS/architectures: macOS latest

Output of `bazel --version`:

```
rules_jest % bazel --version
aspect 5.7.2
```

Version of the Aspect rules, or other relevant rules from your
`WORKSPACE` or `MODULE.bazel` file:
This repo — `d1efd21c02f084a705bdf8d1134450ea261ff454`

Language(s) and/or frameworks involved: None

### How to reproduce

```shell
Run `bazel coverage //example/sharding:test`
```

### Any other information?

_No response_

Start by running `bazel coverage //example/sharding:test` on macOS and inspect why the command produces multiple `coverate.dat` files. Trace the coverage output handling for `//example/sharding:test`; done means the command produces the expected coverage data without duplicate files.

Written by the indexing model from the issue text.