Bump counterfeiter, in order to fix possible panic when generating fakes

Author: bgandon

go.mod

@@ -6,7 +6,7 @@ toolchain go1.21.13
 
 require (
 	github.com/google/go-github/v61 v61.0.0
-	github.com/maxbrunsfeld/counterfeiter/v6 v6.4.1
+	github.com/maxbrunsfeld/counterfeiter/v6 v6.8.1
 	github.com/shurcooL/githubv4 v0.0.0-20240727222349-48295856cce7
 	github.com/stretchr/testify v1.10.0
 	golang.org/x/oauth2 v0.24.0