Update AZP Service Connection Name

We are retiring the use of OAuth service connections
in favor of the recommended and more reliable
Azure App Service Connections. This change switches
over to the new service connection.

Signed-off-by: Brett Logan <lindluni@github.com>
(cherry picked from commit 457e670)

ci/azure-pipelines-release.yml

@@ -78,7 +78,7 @@ stages:
               addChangeLog: true
               assets: $(Pipeline.Workspace)/*amd64*/*
               compareWith: lastFullRelease
-              gitHubConnection: fabric-release
+              gitHubConnection: hyperledger
               isDraft: true
               releaseNotesFile: release_notes/v$(RELEASE).md
               repositoryName: $(Build.Repository.Name)