Fix toolchain version not having .0 at the end

Jacalz · Jacalz · commit 3556c739766e · 2025-01-21T13:20:54.000+01:00
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/Jacalz/rymdport/v3
 
-go 1.21
+go 1.21.0
 
 require (
 	fyne.io/fyne/v2 v2.5.3
