Connect-SQL: Returns clear error message when status is not Online

[johlju]

Pull Request (PR) description

• SqlServerDsc.Common
  • Connect-SQL
    • Now returns a more clear error message when the status of a database
      instance is not Online.

This Pull Request (PR) fixes the following issues

None.

I saw that a pipeline build failed with ScriptHalted instead of a real message.

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 #1841 (3b2bd39) into main (86869cd) will increase coverage by 0%.
The diff coverage is 100%.

@@         Coverage Diff          @@
##           main   #1841   +/-   ##
====================================
  Coverage    91%     91%           
====================================
  Files        71      71           
  Lines      7313    7327   +14     
====================================
+ Hits       6664    6678   +14     
  Misses      649     649           

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

Impacted Files	Coverage Δ
...dules/SqlServerDsc.Common/SqlServerDsc.Common.psm1	98% <100%> (+<1%)	⬆️

[johlju]

Reviewed 4 of 4 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @johlju)