fix(deps): update dependency mkdirp to v2.1.5 (#11336)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

install/package.json

@@ -82,7 +82,7 @@
         "lru-cache": "7.18.3",
         "material-design-lite": "1.3.0",
         "mime": "3.0.0",
-        "mkdirp": "2.1.4",
+        "mkdirp": "2.1.5",
         "mongodb": "4.14.0",
         "morgan": "1.10.0",
         "mousetrap": "1.6.5",