UnwrapElseAfterReturn to handle Python source files gracefully

[greg-at-moderne]

What's changed?

What's your motivation?

Anything in particular you'd like reviewers to focus on?

Anyone you would like to review specifically?

Have you considered any alternatives or workarounds?

Any additional context

Checklist

• I've added unit tests to cover both positive and negative cases
• I've read and applied the recipe conventions and best practices
• I've used the IntelliJ IDEA auto-formatter on affected files

[greg-at-moderne]

The failure is:

UnwrapElseAfterReturnTest > pythonWithImport() FAILED
    java.lang.IllegalStateException: The Python interpreter at python3 does not have openrewrite 8.76.0.dev20260318050028. Either set pipPackagesPath to allow automatic installation, or install the package manually: pip install openrewrite==8.76.0.dev20260318050028
        at org.openrewrite.python.rpc.PythonRewriteRpc$Builder.get(PythonRewriteRpc.java:550)