[MM-61505] Fix errcheck issues in server/channels/app/team_test.go (#29146)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>

server/.golangci.yml

@@ -99,7 +99,6 @@ issues:
         channels/app/platform/status.go|\
         channels/app/slashcommands/command_test.go|\
         channels/app/slashcommands/helper_test.go|\
-        channels/app/team_test.go|\
         channels/app/upload.go|\
         channels/store/localcachelayer/channel_layer.go|\
         channels/store/localcachelayer/channel_layer_test.go|\