SChannelDsc: Changed the build pipeline to use the build worked image `windows-latest`

[johlju]

Pull Request (PR) description

• SChannelDsc
  • Changed the build pipeline to use the build worked image windows-latest.

This Pull Request (PR) fixes the following issues

None.

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 added/updated in README.md.
• [ ] Resource parameter descriptions added/updated in README.md, schema.mof and comment-based help.
• [ ] Comment-based help added/updated.
• [ ] Localization strings added/updated in all localization files as appropriate.
• [ ] Examples appropriately added/updated.
• [ ] Unit tests added/updated. See DSC Community Testing Guidelines.
• [ ] Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• [x] New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov[bot]]

Codecov Report

Merging #35 (e92986f) into master (b6f63e6) will not change coverage. Report is 1 commits behind head on master. The diff coverage is n/a.

@@         Coverage Diff          @@
##           master   #35   +/-   ##
====================================
  Coverage      93%   93%           
====================================
  Files           7     7           
  Lines         543   543           
====================================
  Hits          507   507           
  Misses         36    36           

[johlju]

Merging this as it blocks other changes.