Bump gotify/server version (2.2.0 => 2.2.1) (#163)

* [ci] Bump gotify/server version (2.2.0 => 2.2.1)
* [README] Bump gotify/server version (2.2.0 => 2.2.1)

Author: VerifiedJoseph

.ci/docker-compose.yml

@@ -3,7 +3,7 @@ version: "3"
 services:
   gotify:
     container_name: ci_gotify
-    image: gotify/server:2.2.0
+    image: gotify/server:2.2.1
     ports:
       - "127.0.0.1:8080:80"
     environment:

README.md

@@ -5,7 +5,7 @@
 
 PHP library for interacting with a [Gotify](https://github.com/gotify/server) server using the [Gotify REST-API](https://gotify.net/api-docs).
 
-Supports Gotify server version 2.2.0.
+Supports Gotify server version 2.2.1.
 
 ## Install