Bump go version to 1.22

Lorenz Kästle · Lorenz Kästle · commit ed95818befd9 · 2025-02-17T13:02:57.000+01:00
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/NETWAYS/check_prometheus
 
-go 1.21
+go 1.22
 
 require (
 	github.com/NETWAYS/go-check v0.6.2
