🛠 Tooling: This repo's .all-contributorsrc updates fail integration tests in CI

### Tooling Report Checklist

- [x] I have tried restarting my IDE and the issue persists.
- [x] I have pulled the latest `main` branch of the repository.
- [x] I have [searched for related issues](https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aissue) and found none that matched my issue.

### Overview

Currently open, failing PRs:

* #2070
* #2163
* #2187

#2187 has an example of a big integration test snapshot failure:

```plaintext
❯ src/integration.test.ts:129:4
127| expect(
128| diffCreatedDirectory(actual, created.files, processText),
129| ).toBeUndefined();
| ^
130| });
131|
```

The issue is roughly around the integration test keeping a snapshot of contributors data in the `.all-contributorsrc` and/or `README.md` files.

### Additional Info

🎁