Synchronize with Galaxy Post 24.2 Publication

[jmchilton]

• Rework test verification to use new library functionality (verify_file_path_against_dict) meant for reuse across Galaxy and Planemo - see comments in lib/galaxy/tool_util/verify/__init__.py.
• Migrate the CWL-style literal object into that function (already works for Galaxy workflow tests).
• Integrate workflow test validation into Planemo lint for workflows - Implement Pydantic model for workflow test format.  galaxy#18884
• Integrate tool test case validation into Planemo lint for tools. xref Improvements to parameter models for test case inputs galaxy#18743
• Expose the tool upgrade assistant in some fashion. xref Implement tool upgrade assistant. galaxy#18728
• Use from_yaml_test_format on test collection test property parsing to get the goodies we've added to Galaxy (e.g. better syntax for element definitions and for collection type specification) - https://github.com/galaxyproject/galaxy/pull/18889/files.

Is there something to be done around Markdown help?

[mvdbeek]

We can create pre-release and/or dev packages as needed, if that helps.