Bump lodash from 4.17.15 to 4.17.19 (#300)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -40,7 +40,7 @@
         "express-session": "^1.16.2",
         "express-validator": "^6.2.0",
         "fbgraph": "^1.4.4",
-        "lodash": "^4.17.15",
+        "lodash": "^4.17.19",
         "lusca": "^1.6.1",
         "mongoose": "^5.7.5",
         "nodemailer": "^6.3.0",