fix: Bump minimum required Go version from go1.22.0 to go1.23.0

Author: ctlong

go.mod

@@ -1,8 +1,8 @@
 module github.com/cloudfoundry/cf-test-helpers/v2
 
-go 1.22.0
+go 1.23.0
 
-toolchain go1.22.8
+toolchain go1.23.7
 
 require (
 	github.com/onsi/ginkgo/v2 v2.22.2