fix: add missing dependency

Author: marionebl

package.json

@@ -64,6 +64,7 @@
     "conventional-changelog-angular": "1.0.0",
     "conventional-changelog-lint-config-angular": "0.1.0",
     "conventional-commits-parser": "1.0.1",
+    "denodeify": "1.2.1",
     "franc": "1.1.2",
     "get-stdin": "5.0.1",
     "git-raw-commits": "1.0.0",