BUG: Fix server actions

[gmatthews20]

Remove extra line and duplicate keys from group_by enum in server actions

Description:

Special Notes:

---

Submitter:

Have you (where applicable):

• Added unit tests?
• Checked the latest commit runs on Dev?
• Updated the example config file(s) and README?

---

Reviewer

Does this PR:

• Place non-StackStorm code into the lib directory?
• Have unit tests for the action/sensor and lib layers?
• Have clear and obvious action parameter names and descriptions?

[DavidFair]

Good spot - might be worth adding some yaml linter for this repo to detect problems like this

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.03%. Comparing base (7548372) to head (d6853a1).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #278      +/-   ##
==========================================
- Coverage   98.12%   98.03%   -0.10%     
==========================================
  Files         223      230       +7     
  Lines        8408     8581     +173     
  Branches      511      518       +7     
==========================================
+ Hits         8250     8412     +162     
- Misses        137      141       +4     
- Partials       21       28       +7     

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