Remove deprecated workspace collection cmdlets (#23099)

* Remove deprecated workspace collection cmdlets

* Create BreakingChangeIssues.csv

* resolve comments

* Update PowerBIEmbedded.Test.csproj

* revert change

---------

Co-authored-by: Yabo Hu <[email protected]>

Author: ayeshurun

src/PowerBIEmbedded/PowerBIEmbedded.Test/PowerBIEmbedded.Test.csproj

@@ -14,4 +14,4 @@
     <PackageReference Include="Microsoft.Azure.Management.PowerBIEmbedded" Version="1.1.1-preview" />
   </ItemGroup>
 
-</Project>
+</Project>