Fix Moq versions in more projects

[shenglol]

Missed a few places where Moq is used in my previous PR. We should probably enable central package management to avoid this in the future. I've created #12750 to track it.

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 7202547526)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 7202547526

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 7202547526"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 7202547526

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 7202547526"

[github-actions]

Test Results

       66 files   -        33         66 suites   - 33   1h 24m 46s ⏱️ - 1h 39m 57s
10 426 tests  -        15  10 425 ✔️  -        15  1 💤 ±0  0 ❌ ±0 
25 347 runs   - 12 672  25 345 ✔️  - 12 671  2 💤  - 1  0 ❌ ±0 

Results for commit 2725fb6. ± Comparison against base commit 460934a.