Update devise to solve a bug

There was a sintax error in `Devise::SessionsController#create` which
got solved by updating the `devise` gem.

Gemfile.lock

@@ -83,7 +83,7 @@ GEM
     axlsx_rails (0.2.0)
       axlsx (>= 2.0.1)
       rails (>= 3.1)
-    bcrypt (3.1.10)
+    bcrypt (3.1.12)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     bootstrap-sass (3.3.4.1)
@@ -138,7 +138,7 @@ GEM
       sort_alphabetical (~> 1.0)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    crass (1.0.3)
+    crass (1.0.4)
     currencies (0.4.2)
     daemons (1.1.9)
     dalli (2.7.6)
@@ -150,10 +150,10 @@ GEM
     delayed_job_active_record (4.1.2)
       activerecord (>= 3.0, < 5.2)
       delayed_job (>= 3.0, < 5)
-    devise (4.2.0)
+    devise (4.4.3)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 4.1.0, < 5.1)
+      railties (>= 4.1.0, < 6.0)
       responders
       warden (~> 1.2.3)
     devise_ichain_authenticatable (0.3.1)
@@ -356,7 +356,7 @@ GEM
       slop (~> 3.4)
     public_suffix (2.0.5)
     puma (3.10.0)
-    rack (2.0.3)
+    rack (2.0.5)
     rack-attack (5.0.1)
       rack
     rack-openid (1.3.1)
@@ -418,7 +418,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
-    rake (12.3.0)
+    rake (12.3.1)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -523,7 +523,7 @@ GEM
       multi_json (>= 1.0.0)
       stripe (>= 1.31.0, <= 1.43)
     sysexits (1.2.0)
-    thor (0.19.4)
+    thor (0.20.0)
     thread_safe (0.3.6)
     tilt (1.4.1)
     timecop (0.7.1)
@@ -546,7 +546,7 @@ GEM
     url (0.3.2)
     user_agent_parser (2.4.0)
     uuidtools (2.1.5)
-    warden (1.2.4)
+    warden (1.2.7)
       rack (>= 1.0)
     web-console (2.3.0)
       activemodel (>= 4.0)