Importing a workflow with embedded tools fails if the latest CWL version is a development one

[nsoranzo]

Describe the bug
When importing a workflow via API, the workflow is updated to the latest CWL version (currently "v1.3.0-dev1", a development version) in WorkflowContentsManager.normalize_workflow_format() when workflow_proxy(workflow_path) is called.
Then, in the same method, each embedded tool is first persisted (representation = tool_reference_proxy.to_persistent_representation()) and then reloaded from the persisted representation in DynamicToolManager.create_tool() by calling tool_proxy(). This will try to update the tool again, but this will fail because it's already at a development version.

To Reproduce
Steps to reproduce the behavior:

1. ./run_tests.sh -api lib/galaxy_test/api/test_workflows_cwl.py::TestCwlWorkflows::test_simplest_wf

Traceback:

  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/webapps/galaxy/api/workflows.py", line 317, in create
    return self.__api_import_new_workflow(trans, payload, **kwd)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/webapps/galaxy/api/workflows.py", line 627, in __api_import_new_workflow
    raw_workflow_description = self.__normalize_workflow(trans, data)
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/webapps/galaxy/api/workflows.py", line 646, in __normalize_workflow
    return self.workflow_contents_manager.normalize_workflow_format(trans, as_dict)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/managers/workflows.py", line 675, in normalize_workflow_format
        elif workflow_class == "Workflow":
            from galaxy.tool_util.cwl import workflow_proxy

            # create a temporary file for the workflow if it is provided
            # as JSON, to make it parseable by the WorkflowProxy
            if workflow_path is None:
                with tempfile.NamedTemporaryFile(mode="w+", delete=False) as f:
                    json.dump(as_dict, f)
                    workflow_path = f.name
                if object_id:
                    workflow_path += "#" + object_id
                wf_proxy = workflow_proxy(workflow_path)
                os.unlink(f.name)
            else:
                # TODO: consume and use object_id...
                if object_id:
                    workflow_path += "#" + object_id
                wf_proxy = workflow_proxy(workflow_path)
            tool_reference_proxies = wf_proxy.tool_reference_proxies()
            for tool_reference_proxy in tool_reference_proxies:
                # TODO: Namespace IDS in workflows.
                representation = tool_reference_proxy.to_persistent_representation()
                self.app.dynamic_tool_manager.create_tool(
                    trans,
                    {
                        "uuid": tool_reference_proxy.uuid,
                        "representation": representation,
                    },
                    allow_load=True,
                )
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/managers/tools.py", line 105, in create_tool
                else:
                    # Build a tool proxy so that we can convert to the persistable
                    # hash.
                    proxy = tool_proxy(
                        tool_object=representation["raw_process_reference"],
                        tool_directory=tool_directory,
                        uuid=uuid,
                    )
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/tool_util/cwl/parser.py", line 742, in tool_proxy
    return _to_cwl_tool_object(
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/tool_util/cwl/parser.py", line 812, in _to_cwl_tool_object
    cwl_tool = schema_loader.tool(
               ^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/tool_util/cwl/schema.py", line 101, in tool
    process_definition = self.process_definition(raw_process_reference)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/lib/galaxy/tool_util/cwl/schema.py", line 83, in process_definition
    loading_context, uri = resolve_and_validate_document(
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/.venv/lib/python3.12/site-packages/cwltool/load_tool.py", line 549, in resolve_and_validate_document
    processobj = update.update(
                 ^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/.venv/lib/python3.12/site-packages/cwltool/update.py", line 358, in update
    (cdoc, version) = checkversion(doc, metadata, enable_dev)
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/users/ga002/soranzon/software/nsoranzo_galaxy/.venv/lib/python3.12/site-packages/cwltool/update.py", line 334, in checkversion
    raise ValidationException(
schema_salad.exceptions.ValidationException: Version 'v1.3.0-dev1' is a development or deprecated version.

Potential solution
Instead of persisting and then reloading each embedded tool, create the dynamic tool from the existing tool_proxies available in the workflow proxy.