[CLI] implement forgejo-cli actions register

(cherry picked from commit 2f95143000)

models/actions/main_test.go

@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: MIT
+
+package actions_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		GiteaRootPath: filepath.Join("..", ".."),
+	})
+}