Add a link for the recently pushed branch notification (#29627)

Author: wxiaoguang

templates/repo/code/recently_pushed_new_branches.tmpl

@@ -2,7 +2,8 @@
 	<div class="ui positive message gt-df gt-ac">
 		<div class="gt-f1">
 			{{$timeSince := TimeSince .CommitTime.AsTime ctx.Locale}}
-			{{ctx.Locale.Tr "repo.pulls.recently_pushed_new_branches" .Name $timeSince}}
+			{{$branchLink := HTMLFormat `<a href="%s/src/branch/%s">%s</a>` $.RepoLink (PathEscapeSegments .Name) .Name}}
+			{{ctx.Locale.Tr "repo.pulls.recently_pushed_new_branches" $branchLink $timeSince}}
 		</div>
 		<a role="button" class="ui compact positive button gt-m-0" href="{{$.Repository.ComposeBranchCompareURL $.Repository.BaseRepo .Name}}">
 			{{ctx.Locale.Tr "repo.pulls.compare_changes"}}