Bump date-fns from 2.21.3 to 2.22.1

Bumps [date-fns](https://github.com/date-fns/date-fns) from 2.21.3 to 2.22.1.
- [Release notes](https://github.com/date-fns/date-fns/releases)
- [Changelog](https://github.com/date-fns/date-fns/blob/master/CHANGELOG.md)
- [Commits](https://github.com/date-fns/date-fns/compare/v2.21.3...v2.22.1)

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -3396,9 +3396,9 @@
       }
     },
     "date-fns": {
-      "version": "2.21.3",
-      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.21.3.tgz",
-      "integrity": "sha512-HeYdzCaFflc1i4tGbj7JKMjM4cKGYoyxwcIIkHzNgCkX8xXDNJDZXgDDVchIWpN4eQc3lH37WarduXFZJOtxfw=="
+      "version": "2.22.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.22.1.tgz",
+      "integrity": "sha512-yUFPQjrxEmIsMqlHhAhmxkuH769baF21Kk+nZwZGyrMoyLA+LugaQtC0+Tqf9CBUUULWwUJt6Q5ySI3LJDDCGg=="
     },
     "date-fns-tz": {
       "version": "1.1.4",

package.json

@@ -10,7 +10,7 @@
     "test": "jest"
   },
   "dependencies": {
-    "date-fns": "^2.21.3",
+    "date-fns": "^2.22.1",
     "date-fns-tz": "^1.1.4",
     "ics": "^2.27.0",
     "mongoose": "^5.12.10",