fix: update teams-app cli

[nliu-ms]

1. teamsfx update teams-app
   

2. teamsfx validate
   https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/18488521
   

[codecov]

Codecov Report

Merging #8499 (2b711a9) into dev (40d6610) will increase coverage by 0.01%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #8499      +/-   ##
==========================================
+ Coverage   78.68%   78.70%   +0.01%     
==========================================
  Files         606      606              
  Lines       41861    41951      +90     
  Branches     8332     8348      +16     
==========================================
+ Hits        32939    33018      +79     
+ Misses       5579     5577       -2     
- Partials     3343     3356      +13     

Impacted Files	Coverage Δ
packages/cli/src/cmds/update.ts	80.00% <100.00%> (+6.58%)	⬆️
packages/cli/src/cmds/validate.ts	86.95% <100.00%> (+1.95%)	⬆️

... and 8 files with indirect coverage changes