We replace the double conversion of
[]byte to string, with a direct write
to http.ResponseWriter.
https://mattermost.atlassian.net/browse/MM-22051
Tried using gofmt -r, but it only accepts Go
expressions. So had to resort to an ugly sed replace
sed -E -i 's/w.Write\(\[\]byte\((.*).ToJson\(\)\)\)/if err := json.NewEncoder\(w\).Encode\(\1\); err != nil { mlog.Warn\("Error while writing response", mlog.Err\(err\)\)}/g' *.go
```release-note
NONE
```
* [MM-30016] Allows to create an incoming webhook for a different user
* [MM-30021] Allows to create an outgoing webhook for a different user
* Fix update test
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
