Change the default commit message and base branch for dotnet.

Author: SilasKenneth

.azure-pipelines/generation-pipeline.yml

@@ -280,10 +280,11 @@ stages:
         language: 'csharp'
         version: ''
         repoName: 'msgraph-sdk-dotnet'
-        baseBranchName : 'dev'
+        baseBranchName : 'main'
         branchName: 'kiota/$(v1Branch)'
         targetClassName: "BaseGraphServiceClient"
         targetNamespace: "Microsoft.Graph"
+        commitMessagePrefix: "feat(generation): update request builders and models"
         customArguments: "-b" # Enable the backing store
         cleanMetadataFolder: $(cleanOpenAPIFolderV1)
         languageSpecificSteps:
@@ -309,10 +310,11 @@ stages:
         language: 'csharp'
         version: 'beta'
         repoName: 'msgraph-beta-sdk-dotnet'
-        baseBranchName : 'master'
+        baseBranchName : 'main'
         branchName: 'kiota/$(betaBranch)'
         targetClassName: "BaseGraphServiceClient"
         targetNamespace: "Microsoft.Graph.Beta"
+        commitMessagePrefix: "feat(generation): update request builders and models"
         customArguments: "-b" # Enable the backing store
         cleanMetadataFolder: $(cleanOpenAPIFolderBeta)
         languageSpecificSteps: