Update dependency express-jwt to v6

package.json

@@ -40,7 +40,7 @@
     "debug": "^2.4.5",
     "dotenv": "^4.0.0",
     "express": "4.14.0",
-    "express-jwt": "5.1.0",
+    "express-jwt": "6.0.0",
     "express-validation": "1.0.1",
     "express-winston": "2.1.2",
     "firebase-admin": "4.1.2",

yarn.lock

@@ -2120,13 +2120,14 @@ expand-tilde@^2.0.0, expand-tilde@^2.0.2:
   dependencies:
     homedir-polyfill "^1.0.1"
 
-[email protected]:
-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/express-jwt/-/express-jwt-5.1.0.tgz#a1c5e3381bc78d2de4d3c51133421c69e004d581"
+[email protected]:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/express-jwt/-/express-jwt-6.0.0.tgz#20886c730983ffb1c706a4383235df86eff349b8"
+  integrity sha512-C26y9myRjx7CyhZ+BAT3p+gQyRCoDZ7qo8plCvLDaRT6je6ALIAQknT6XLVQGFKwIy/Ux7lvM2MNap5dt0T7gA==
   dependencies:
     async "^1.5.0"
     express-unless "^0.3.0"
-    jsonwebtoken "~6.2.0"
+    jsonwebtoken "^8.1.0"
     lodash.set "^4.0.0"
 
 express-unless@^0.3.0:
@@ -3693,7 +3694,7 @@ [email protected]:
     items "2.x.x"
     topo "2.x.x"
 
-joi@^6.10.1, joi@~6.10.1:
+joi@^6.10.1:
   version "6.10.1"
   resolved "https://registry.yarnpkg.com/joi/-/joi-6.10.1.tgz#4d50c318079122000fe5f16af1ff8e1917b77e06"
   dependencies:
@@ -3783,7 +3784,7 @@ [email protected]:
     ms "^0.7.1"
     xtend "^4.0.1"
 
-jsonwebtoken@^8.2.0:
+jsonwebtoken@^8.1.0, jsonwebtoken@^8.2.0:
   version "8.5.1"
   resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz#00e71e0b8df54c2121a1f26137df2280673bcc0d"
   integrity sha512-XjwVfRS6jTMsqYs0EsuJ4LGxXV14zQybNd4L2r0UvbVnSF9Af8x7p5MzbJ90Ioz/9TI41/hTCvznF/loiSzn8w==
@@ -3799,15 +3800,6 @@ jsonwebtoken@^8.2.0:
     ms "^2.1.1"
     semver "^5.6.0"
 
-jsonwebtoken@~6.2.0:
-  version "6.2.0"
-  resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-6.2.0.tgz#8233154c6cd9fd8760ad0f5a563f539dd391f2f9"
-  dependencies:
-    joi "~6.10.1"
-    jws "^3.0.0"
-    ms "^0.7.1"
-    xtend "^4.0.1"
-
 jsprim@^1.2.2:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"