sids 1.0.3

An actor-model concurrency framework providing abstraction over async and blocking actors.
Documentation
# Pull Request

## Description

<!-- Provide a brief description of the changes in this PR -->

## Type of Change

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- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
- [ ] Documentation update
- [ ] Performance improvement
- [ ] Code refactoring

## Testing

<!-- Describe the tests you ran to verify your changes -->

- [ ] All existing tests pass
- [ ] Added new tests for the changes
- [ ] Tested manually

## Checklist

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published

## Related Issues

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Closes #