Maintenance: Run end-to-end tests only on changes inside libraries path

### Summary

Run end-to-end tests only on changes inside libraries path

### Why is this needed?

Avoid running e2e when no cod has changed

### Which area does this relate to?

_No response_

### Solution

_No response_

### Acknowledgment

- [x] This request meets [Powertools for AWS Lambda (.NET) Tenets](https://docs.powertools.aws.dev/lambda/dotnet/#tenets)