ruff check in outputfile_compiler breaks when proto field comments end in quote marks

### Summary

ruff check in outputfile_compiler breaks when proto field comments end in quote marks

### Reproduction Steps

```proto
message Test {
// something, for example "bug"
string what = 1;
}
```

### Expected Results

It works.

### Actual Results

Ruff errors out with "SyntaxError: Expected a statement" on the string that looks like `"""something, for example "bug""""`.

### System Information

n/a

### Checklist

- [x] I have searched the issues for duplicates.
- [x] I have shown the entire traceback, if possible.
- [x] I have verified this issue occurs on the latest prelease of betterproto which can be installed using `pip install -U --pre betterproto`, if possible.

Start by locating the outputfile_compiler code path and reproducing the issue with the provided proto snippet. Verify that generated output containing a field comment ending in quote marks passes ruff check without a SyntaxError.

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