Shorten id of WorkflowStepInput via graph_split.py

[altairwei]

I am used to using VSCode to write CWL documents and use Benten as a CWL Language Server to provide error checking for the editor. However, when I split the packed document using graph_split, I found that Benten was hinting that the id in my WorkflowStepInput was incorrect and that its id name contained an unnecessary prefix. Although I used cwltool --valid to validate the CWL document and found no problem, I wanted to correct the error that Benten was prompting, which is why I created this pull request.

[mr-c]

Thank you for this PR! Can you add a test case to confirm your change?

[altairwei]

Thank you for this PR! Can you add a test case to confirm your change?

I can give it a try. But graph_split doesn't have enough test cases, do you feel the need to add them?

[mr-c]

Thank you for this PR! Can you add a test case to confirm your change?

I can give it a try. But graph_split doesn't have enough test cases, do you feel the need to add them?

Even a single test case would be nice

[codecov]

Codecov Report

Merging #54 (6b90034) into main (99f3b25) will increase coverage by 0.05%.
The diff coverage is 81.81%.

@@            Coverage Diff             @@
##             main      #54      +/-   ##
==========================================
+ Coverage   23.82%   23.87%   +0.05%     
==========================================
  Files          14       14              
  Lines       19277    19299      +22     
==========================================
+ Hits         4593     4608      +15     
- Misses      14684    14691       +7     

Impacted Files	Coverage Δ
cwl_utils/graph_split.py	52.69% <81.81%> (+2.34%)	⬆️

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