fix: "upgrade manifest" and advanced da error message

[tecton]

remove "upgrade manifest" and fix advanced da error message.

https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/36966836
https://msazure.visualstudio.com/Microsoft%20Teams%20Extensibility/_workitems/edit/36967932

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.30%. Comparing base (dc20b07) to head (fec8dbf).
⚠️ Report is 10 commits behind head on release/6.6.

Additional details and impacted files

@@              Coverage Diff              @@
##           release/6.6   #15413    +/-   ##
=============================================
  Coverage        89.30%   89.30%            
=============================================
  Files              620      620            
  Lines            38073    38073            
  Branches          7728     7560   -168     
=============================================
  Hits             34000    34000            
  Misses            1972     1972            
  Partials          2101     2101            

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