Upgrade to go 1.25

Signed-off-by: Timo Sand <timo.sand@f-secure.com>

Author: deiga

go.mod

@@ -1,6 +1,6 @@
 module github.com/integrations/terraform-provider-github/v6
 
-go 1.24.4
+go 1.25
 
 require (
 	github.com/go-jose/go-jose/v3 v3.0.4