fix(deps): update dependency multer to v2

Author: renovate[bot]

package-lock.json

@@ -15,7 +15,7 @@
     "express": "^4.17.1",
     "jest": "^27.0.3",
     "morgan": "^1.10.0",
-    "multer": "^1.4.5-lts.1",
+    "multer": "^2.0.0",
     "mustache": "^4.2.0",
     "nodemailer": "^6.6.1",
     "nodemon": "^2.0.7",