Revert temporary Prerequisites test changes once DSCv3-specific Prerequisites tests are created

Description

In PR #2102, temporary changes were made to the Prerequisites integration test to accommodate DSCv3 integration test stages. These changes should be reverted once a separate Prerequisites integration test is created specifically for DSCv3.

Code Changed

From (strict check):

$module | Should -HaveCount 1
$module.Version -ge '1.0.4.1' | Should -BeTrue

To (lenient check):

$module.Count | Should -BeGreaterOrEqual 1
#$module.Version -ge '1.0.4.1' | Should -BeTrue

File: tests/Integration/Commands/Prerequisites.Integration.Tests.ps1
Lines: ~197-198

Expected Resolution

1. Create a separate Prerequisites integration test file for DSCv3 integration test stages
2. Revert the changes in tests/Integration/Commands/Prerequisites.Integration.Tests.ps1 back to the original strict assertions
3. Ensure the new DSCv3-specific Prerequisites test has appropriate module version checks for that environment

References

• PR: #2102
• Comment: https://github.com/dsccommunity/SqlServerDsc/pull/2102#discussion_r2702584253

Reported by: @johlju