Update grammar

[itpropro]

Fixing a probable oversight in the grammar definition from #12281

Microsoft Reviewers: Open in CodeFlow

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 7.71%. Comparing base (108d816) to head (740f86d).
Report is 242 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main   #13668       +/-   ##
===========================================
- Coverage   94.28%    7.71%   -86.57%     
===========================================
  Files        1113        7     -1106     
  Lines      100791      350   -100441     
  Branches     8734      127     -8607     
===========================================
- Hits        95028       27    -95001     
+ Misses       4595      323     -4272     
+ Partials     1168        0     -1168     

Flag	Coverage Δ
dotnet	?
typescript	7.71% <ø> (ø)

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see 1106 files with indirect coverage changes

[anthony-c-martin]

LGTM, thanks for contributing!

[github-actions]

Test this change out locally with the following install scripts (Action run 8378124134)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 8378124134

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 8378124134"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 8378124134

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 8378124134"