Add a job to build Bicep CLI for linux-musl-x64

[shenglol]

Contributing a Pull Request

Contributing a feature

• I have opened a new issue for the proposal, or commented on an existing one, and ensured that the Bicep maintainers are good with the design of the feature being implemented
• I have included "Fixes #{issue_number}" in the PR description, so GitHub can link to the issue and close it when the PR is merged
• I have appropriate test coverage of my new feature

This is the first step to address #1683.

[miqm]

FYI you have typo in PR title ;)

[codecov-io]

Codecov Report

Merging #1752 (3974295) into main (25339dd) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1752   +/-   ##
=======================================
  Coverage   95.03%   95.03%           
=======================================
  Files         371      371           
  Lines       21692    21692           
  Branches       15       15           
=======================================
  Hits        20615    20615           
  Misses       1077     1077           

Flag	Coverage Δ
dotnet	95.47% <ø> (ø)
typescript	26.61% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.