Publish semantic tokens for object type keys

[anthony-c-martin]

Closes #12190

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 6575223970)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 6575223970

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 6575223970"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 6575223970

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 6575223970"

[github-actions]

Test Results

     132 files  ±0       132 suites  ±0   3h 51m 39s ⏱️ - 7m 59s
10 673 tests ±0  10 673 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
51 579 runs  ±0  51 579 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 992fb40. ± Comparison against base commit 865577d.