chore: updated Go version

Author: grulicht

go.mod

@@ -2,7 +2,7 @@ module github.com/portainer/terraform-provider-portainer
 
 go 1.26.0
 
-toolchain go1.26.4
+toolchain go1.26.5
 
 require (
 	github.com/go-openapi/runtime v0.32.1