generate_metadata.Jenkins - init add

[itewk]

Purpose

add a generate-metadata StepImplementer for Jenkins.

Dependencies

This is useless without #230 which is what expects the workflow-run-num config value.

Breaking?

No

Integration Testing

Tested with internal app.

[codecov]

Codecov Report

Merging #231 (bcac6ad) into main (a2cdfff) will not change coverage.
The diff coverage is 100.00%.

❗ Current head bcac6ad differs from pull request most recent head 502c2e3. Consider uploading reports for the commit 502c2e3 to get more accurate results

@@            Coverage Diff            @@
##              main      #231   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           92        93    +1     
  Lines         3808      3824   +16     
=========================================
+ Hits          3808      3824   +16     

Flag	Coverage Δ
pytests	100.00% <100.00%> (ø)

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Impacted Files	Coverage Δ
...er/step_implementers/generate_metadata/__init__.py	100.00% <100.00%> (ø)
...ner/step_implementers/generate_metadata/jenkins.py	100.00% <100.00%> (ø)

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[itewk]

rebased on main. no other changes. assuming @dwinchell 's aproval still stands.