fix issue in validor dependency in the backend of react-express-mongodb sample (#175)

Signed-off-by: Guillaume Lours <guillaume.lours@docker.com>

react-express-mongodb/backend/package-lock.json

@@ -1600,9 +1600,9 @@
       "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
     },
     "validator": {
-      "version": "10.11.0",
-      "resolved": "https://registry.npmjs.org/validator/-/validator-10.11.0.tgz",
-      "integrity": "sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw=="
+      "version": "13.7.0",
+      "resolved": "https://registry.npmjs.org/validator/-/validator-13.7.0.tgz",
+      "integrity": "sha512-nYXQLCBkpJ8X6ltALua9dRrZDHVYxjJ1wgskNt1lH9fzGjs3tgojGSCBjmEPwkWS1y29+DrizMTW19Pr9uB2nw=="
     },
     "vary": {
       "version": "1.1.2",

react-express-mongodb/backend/package.json

@@ -21,7 +21,7 @@
     "mongodb": "^3.0.7",
     "mongoose": "^6.0.9",
     "simple-node-logger": "^18.12.23",
-    "validator": "^10.1.0"
+    "validator": "^13.7.0"
   },
   "devDependencies": {
     "nodemon": "^2.0.3",