Fix stg access group validation

[Pearl1594]

Description

The PR fixes the below issue:

VM migration fails with “Storage access groups on the source and destination hosts did not match” if list of storage access groups does not match.

Steps to reproduce:

VM with ROOT volume ed2 (Volume Type ACED) created on Host with storage access groups [legacy, aced]
VM migrated to Host with storage access groups [aced]

Expected result:
VM migrated as there is common storage access group, where ROOT volume created from (aced).

Observed result:
Storage access groups on the source and destination hosts did not match.
It just simply checks collections [legacy, aced] and [aced] should be equal.

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• Build/CI
• Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 3.69%. Comparing base (a951ac6) to head (f14f9dd).

❗ There is a different number of reports uploaded between BASE (a951ac6) and HEAD (f14f9dd). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (a951ac6)	HEAD (f14f9dd)
unittests	1	0

Additional details and impacted files

@@              Coverage Diff              @@
##               4.22   #13562       +/-   ##
=============================================
- Coverage     17.67%    3.69%   -13.98%     
=============================================
  Files          5923      448     -5475     
  Lines        533349    38117   -495232     
  Branches      65248     7067    -58181     
=============================================
- Hits          94253     1409    -92844     
+ Misses       428437    36521   -391916     
+ Partials      10659      187    -10472     

Flag	Coverage Δ
uitests	3.69% <ø> (ø)
unittests	?

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[github-actions]

This pull request has merge conflicts. Dear author, please fix the conflicts and sync your branch with the base branch.