`Import-SqlDscPreferredModule`: Fix re-evaluate PSModulePath

[johlju]

Pull Request (PR) description

• Import-SqlDscPreferredModule
  • Now when parameter Force is passed the command correctly invoke Get-SqlDscPreferredModule using the parameter Refresh.

This Pull Request (PR) fixes the following issues

None. But might be the reason PR #1932 fails.

Task list

• [x] Added an entry to the change log under the Unreleased section of the file CHANGELOG.md. Entry should say what was changed and how that affects users (if applicable), and reference the issue being resolved (if applicable).
• [ ] Resource documentation updated in the resource's README.md.
• [ ] Resource parameter descriptions updated in schema.mof.
• [ ] Comment-based help updated, including parameter descriptions.
• [ ] Localization strings updated.
• [ ] Examples updated.
• [x] Unit tests updated. See DSC Community Testing Guidelines.
• [ ] Integration tests updated (where possible). See DSC Community Testing Guidelines.
• [x] Code changes adheres to DSC Community Style Guidelines.

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This change is 

[codecov[bot]]

Codecov Report

Merging #1938 (50dfb85) into main (d296853) will increase coverage by 0%. The diff coverage is 100%.

@@         Coverage Diff          @@
##           main   #1938   +/-   ##
====================================
  Coverage    91%     91%           
====================================
  Files        92      92           
  Lines      7806    7808    +2     
====================================
+ Hits       7181    7183    +2     
  Misses      625     625           

Flag	Coverage Δ
unit	91% <100%> (+<1%)	:arrow_up:

Impacted Files	Coverage Δ
source/Public/Import-SqlDscPreferredModule.ps1	100% <100%> (ø)