Is there a reason this isn't a regex

https://github.com/awslabs/git-secrets/blob/7d6b970cbd3c216353cb22b383b70c150140662e/git-secrets#L241

Expected:

```bash
add config 'secrets.patterns' = 'bedrock-api-key-[A-Za-z0-9]{32}'
```

Does anyone know any reason for this being hard coded?

Start at git-secrets line 241, linked in the issue, and inspect how the Bedrock API key pattern is currently handled. Compare that behavior with the proposed secrets.patterns configuration command; done means the pattern is configurable there instead of being hard-coded.

Written by the indexing model from the issue text.