ci: package and publish the Maya plugin to the GitHub release

What was the problem/requirement? (What/Why)

The actual plugin files for the Maya submitter:

Are not having their version number modified when we release a new version of the submitter; and
Are not made available to customers other than by requiring that they git clone the release branch of this repository.

What was the solution? (How)

Modify the GitHub workflows to:

Overwrite the DeadlineCloudForMaya.mod file with the correct version during creation of the bump PR; Update the Version number in DeadlineCloudForMaya.py; and
Zip the contents of the maya_submitter_plugin directory into the dist_extras/ directory during the actual release workflow. The shared release workflow has been modified in the .github repository to publish all files in dist_extras/ to the GitHub release page.

What is the impact of this change?

With this change, we can have instructions for how to install the Maya submitter in the package README that looks like:

Install the submitter support files into Maya using mayapy. Reference the Maya online documentation to find the location of mayapy on your system. e.g. For Maya 2024: https://help.autodesk.com/view/MAYAUL/2024/ENU/?guid=GUID-72A245EC-CDB4-46AB-BEE0-4BBBF9791627 Follow the instructions in Maya's official online documentation to install the deadline-cloud-for-maya Python library and its dependencies to be available to Maya. For example, to install in Maya's default global location: mayapy -m pip install deadline-cloud-for-maya --upgrade
Download the appropriate version of the maya_submitter_plugin.zip file from the GitHub release for this package.
Unzip the maya_submitter_plugin into the location of your MAYA_MODULE_PATH. See the Maya online documentation on "File path variables". e.g. For Maya 2024 https://help.autodesk.com/view/MAYAUL/2024/ENU/?guid=GUID-228CCA33-4AFE-4380-8C3D-18D23F7EAC72

How was this change tested?

Was tested by replicating the workflow in a developer GitHub account and confirming that the ChangeLog generated by the bump worfklow had the version changes to DeadlineCloudForMaya.mod and DeadlineCloudForMaya.py. Confirmed that the Release workflow generated the zip with the maya_submitter_plugin contents.

Did you run the "Job Bundle Output Tests"? If not, why not? If so, paste the test results here.

Not needed, this is a CI change.

Was this change documented?

Is this a breaking change?

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

aws-deadline / deadline-cloud-for-maya