Add method to shutdown server

[jose-caballero]

Description:

Special Notes:

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Submitter:

Have you (where applicable):

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

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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?

[codecov]

Codecov Report

❌ Patch coverage is 65.00000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 99.43%. Comparing base (c94154f) to head (2318af3).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/apis/openstack_api/openstack_server.py	65.00%	6 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #441      +/-   ##
==========================================
- Coverage   99.69%   99.43%   -0.27%     
==========================================
  Files         109      109              
  Lines        2648     2667      +19     
  Branches      332      335       +3     
==========================================
+ Hits         2640     2652      +12     
- Misses          7       13       +6     
- Partials        1        2       +1     

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[DavidFair]

Also there's no way to test this code using ST2 - could you add action yamls to wrap both calls so I can test on a dev ST2 instance?

[DavidFair]

Making this a formal review

Needs unit testing (even in the PR template)
Needs to be runnable on a dev instance else we're working on hopes and prayers (again in the PR template)

Before we accept code into ST2 where it can run on a prod instance with elevated permissions automatically in the future....

Away and don't want to block this PR