SqlRS: Add new integration test jobs

[johlju]

Pull Request (PR) description

• SqlServerDsc
  • Added a separate integration test jobs for SQL Server Reporting Services
    to be able to test configuring SQL Server Reportings Services using
    other values that the default values.

This Pull Request (PR) fixes the following issues

Part of PR #1870 which is required for the tests to pass

Task list

• 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.
• Unit tests updated. See DSC Community Testing Guidelines.
• Integration tests updated (where possible). See DSC Community Testing Guidelines.
• Code changes adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

Merging #1877 (1e07bc4) into main (5efa82d) will increase coverage by 0%.
The diff coverage is 100%.

@@         Coverage Diff          @@
##           main   #1877   +/-   ##
====================================
  Coverage    92%     92%           
====================================
  Files        85      85           
  Lines      7631    7640    +9     
====================================
+ Hits       7029    7038    +9     
  Misses      602     602           

Flag	Coverage Δ
unit	92% <100%> (+<1%)	⬆️

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

[johlju]

Reviewed 10 of 10 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @johlju)

---

azure-pipelines.yml line 194 at r1 (raw file):

              Remove-Module -Name CommonTestHelper
            name: removeSqlServerModule
            displayName: 'Remove SqlServer module'

Can be fixed in another PR.

Suggestion:

'Clean CI worker'

---

azure-pipelines.yml line 296 at r1 (raw file):

              Remove-Module -Name CommonTestHelper
            name: removeSqlServerModule
            displayName: 'Remove SqlServer module'

Can be fixed in another PR.

Suggestion:

'Clean CI worker'

---

source/Public/Import-SqlDscPreferredModule.ps1 line 113 at r1 (raw file):

            $modulePathMachine = [System.String] [System.Environment]::GetEnvironmentVariable('PSModulePath', 'Machine')

            $modulePath = $modulePathSession + ';'  + $modulePathUser + ';' + $modulePathMachine

Can be fixed in another PR.

Suggestion:

$modulePath = $modulePathSession, $modulePathUser, $modulePathMachine -join ';'