fix: add WorkflowFlowAction to sub-object types

[mcarvin8]

Explain your changes

---

Fixes the issues described in #993, which is WorkflowFlowAction being generated without the parent workflow name in the incremental package.xml.

Current release (6.2.0)

    <types>
        <members>Populate_PBA_from_Primary_CDM_User_record</members>
        <name>WorkflowFlowAction</name>
    </types>

When testing above fixes

    <types>
        <members>Account.Populate_PBA_from_Primary_CDM_User_record</members>
        <name>WorkflowFlowAction</name>
    </types>

Does this close any currently open issues?

---

closes #993

• Jest tests added to cover the fix.
• NUT tests added to cover the fix.
• E2E tests added to cover the fix.

Any particular element that can be tested locally

---

I can provide a WorkflowFlowAction sample in your sfdx-git-delta reproduction playground repo.

See scolladon/sfdx-git-delta-reproduction-playground#10

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (5c4f60b) to head (239b41d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #994   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           44        44           
  Lines          994       994           
  Branches       105       105           
=========================================
  Hits           994       994           

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[scolladon]

LGTM so far

I think we could add an integration test here.
IMHO, there is no need to include that into the end to end tests, as it is not a widely used feature.

[codeclimate]

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[mcarvin8]

Adding FlowAction to the integration test is passing

[scolladon]

LGTM