Werkit

Bug fixes

- In `collect_zipfile_contents`, create target subdirectory for each file in
` src_files`.

New features

- `Manager.work()`: Add `should_send` and `should_return` parameters.

BREAKING CHANGES

- Manager: Add `work()` method, replacing its use as a context handler.

New features

- Add LambdaDestination.

BREAKING CHANGES

- Bump missouri dependency.

Bug fixes

- StateManager: Eliminate some type errors downstream.
- Fix a runtime error checking the dependency graph schema using the published
package.

BREAKING CHANGES

- Require Python 3.9+
- To create DependencyGraph from a class, use `DependencyGraph.from_class()`
instead of `DependencyGraph()`

New features

- Add mypy types.
- Add `DependencyGraph.deserialize()`
- Extract Store superclass from StateManager

- Fix compatibility with updated semver dependency.