chore: expose thoth in lib (#911)

Imports a patch previously exclusive to Botstopper.

Signed-off-by: Xe Iaso <me@xeiaso.net>

lib/thoth/thothmock/withthothmock.go

@@ -0,0 +1,17 @@
+package thothmock
+
+import (
+	"context"
+	"testing"
+
+	"github.com/TecharoHQ/anubis/lib/thoth"
+)
+
+func WithMockThoth(t *testing.T) context.Context {
+	t.Helper()
+
+	thothCli := &thoth.Client{}
+	thothCli.WithIPToASNService(MockIpToASNService())
+	ctx := thoth.With(t.Context(), thothCli)
+	return ctx
+}