Bump jwt-simple from 0.5.1 to 0.5.6

Bumps [jwt-simple](https://github.com/hokaccha/node-jwt-simple) from 0.5.1 to 0.5.6.
- [Release notes](https://github.com/hokaccha/node-jwt-simple/releases)
- [Changelog](https://github.com/hokaccha/node-jwt-simple/blob/master/History.md)
- [Commits](https://github.com/hokaccha/node-jwt-simple/compare/v0.5.1...v0.5.6)

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

package-lock.json

@@ -4722,9 +4722,9 @@
       }
     },
     "jwt-simple": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/jwt-simple/-/jwt-simple-0.5.1.tgz",
-      "integrity": "sha1-eeoBiRth3mto4T5nwLS1vak3spQ="
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/jwt-simple/-/jwt-simple-0.5.6.tgz",
+      "integrity": "sha512-40aUybvhH9t2h71ncA1/1SbtTNCVZHgsTsTgqPUxGWDmUDrXyDf2wMNQKEbdBjbf4AI+fQhbECNTV6lWxQKUzg=="
     },
     "kind-of": {
       "version": "3.2.2",

package.json

@@ -44,7 +44,7 @@
     "cookie-parser": "^1.4.3",
     "create-react-class": "^15.6.3",
     "express": "^4.13.3",
-    "jwt-simple": "^0.5.1",
+    "jwt-simple": "^0.5.6",
     "lodash": "^4.17.15",
     "marked": "^0.3.5",
     "moment": "^2.24.0",