feat: update yaml schema for async validation

[anchenyi]

https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/27423786

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.38%. Comparing base (bfc1daf) to head (6fe2760).
Report is 5 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev   #11335   +/-   ##
=======================================
  Coverage   88.38%   88.38%           
=======================================
  Files         536      536           
  Lines       32436    32470   +34     
  Branches     6405     6376   -29     
=======================================
+ Hits        28667    28699   +32     
  Misses       1838     1838           
- Partials     1931     1933    +2     

Files	Coverage Δ
...s/fx-core/src/component/configManager/validator.ts	81.48% <100.00%> (ø)
...mponent/driver/teamsApp/clients/appStudioClient.ts	81.81% <100.00%> (ø)

... and 8 files with indirect coverage changes