Update omniauth-github to version 1.3.0

Gemfile.lock

@@ -150,7 +150,7 @@ GEM
       thor (>= 0.14, < 2.0)
     json (2.1.0)
     json (2.1.0-java)
-    jwt (1.5.6)
+    jwt (2.1.0)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.1.1)
@@ -213,9 +213,9 @@ GEM
     nokogiri (1.8.5)
       mini_portile2 (~> 2.3.0)
     nokogiri (1.8.5-java)
-    oauth2 (1.4.0)
-      faraday (>= 0.8, < 0.13)
-      jwt (~> 1.0)
+    oauth2 (1.4.1)
+      faraday (>= 0.8, < 0.16.0)
+      jwt (>= 1.0, < 3.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
@@ -224,9 +224,9 @@ GEM
     omniauth (1.8.1)
       hashie (>= 3.4.6, < 3.6.0)
       rack (>= 1.6.2, < 3)
-    omniauth-github (1.1.2)
-      omniauth (~> 1.0)
-      omniauth-oauth2 (~> 1.1)
+    omniauth-github (1.3.0)
+      omniauth (~> 1.5)
+      omniauth-oauth2 (>= 1.4.0, < 2.0)
     omniauth-google-oauth2 (0.5.3)
       jwt (>= 1.5)
       omniauth (>= 1.1.1)