fix(server): Add extKeyUsage to self-signed cert (#2274)

Author: tarrall

lib/utils/createCertificate.js

@@ -20,6 +20,13 @@ function createCertificate(attributes) {
         keyEncipherment: true,
         dataEncipherment: true,
       },
+      {
+        name: 'extKeyUsage',
+        serverAuth: true,
+        clientAuth: true,
+        codeSigning: true,
+        timeStamping: true,
+      },
       {
         name: 'subjectAltName',
         altNames: [