Fix test

pkg/inference/backends/llamacpp/llamacpp_config_test.go

@@ -1,6 +1,7 @@
 package llamacpp
 
 import (
+	"errors"
 	"runtime"
 	"strconv"
 	"testing"
@@ -251,6 +252,10 @@ type fakeModel struct {
 	config   types.Config
 }
 
+func (f *fakeModel) MMPROJPath() (string, error) {
+	return "", errors.New("not found")
+}
+
 func (f *fakeModel) ID() (string, error) {
 	panic("shouldn't be called")
 }