AG related bugfixes

[lowlydba]

Description

How Has This Been Tested?

Bug fixes for availability_group and ag_replica

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue) - Fixes #
• [ ] New feature (non-breaking change which adds functionality)

Checklist:

• [x] I have read/followed the CONTRIBUTING document.
• [x] I have read/followed the PR Quick Start Guide
• [ ] I have added tests to cover my changes or they are N/A.
• [] New module options/parameters include a version_added property.

[codecov-commenter]

Codecov Report

Merging #113 (fb1d811) into main (a7a5001) will increase coverage by 6.41%. The diff coverage is n/a.

@@             Coverage Diff             @@
##             main      #113      +/-   ##
===========================================
+ Coverage   93.58%   100.00%   +6.41%     
===========================================
  Files          59        30      -29     
  Lines        1994        92    -1902     
  Branches        2         2              
===========================================
- Hits         1866        92    -1774     
+ Misses        128         0     -128     

Impacted Files	Coverage Δ
plugins/modules/ag_replica.ps1
plugins/modules/availability_group.ps1
plugins/modules/agent_job_schedule.ps1
plugins/modules/hadr.ps1
plugins/modules/agent_job_step.ps1
plugins/modules/login.ps1
plugins/modules/dba_multitool.ps1
plugins/modules/agent_job.ps1
plugins/modules/sa.ps1
plugins/modules/backup.ps1
... and 19 more

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