Update dependencies

Gemfile.lock

@@ -147,7 +147,7 @@ GEM
       concurrent-ruby (~> 1.0)
     idn-ruby (0.1.5)
     io-console (0.7.2)
-    irb (1.11.1)
+    irb (1.11.2)
       rdoc
       reline (>= 0.4.2)
     jbuilder (2.11.5)
@@ -163,7 +163,7 @@ GEM
       net-smtp
     marcel (1.0.2)
     mini_mime (1.1.5)
-    minitest (5.22.0)
+    minitest (5.22.1)
     mocha (2.1.0)
       ruby2_keywords (>= 0.0.5)
     msgpack (1.7.2)
@@ -257,7 +257,7 @@ GEM
       railties (>= 3.1, < 7.2)
     ruby2_keywords (0.0.5)
     rubypants (0.7.1)
-    rugged (1.7.1)
+    rugged (1.7.2)
     sassc (2.4.0)
       ffi (~> 1.9)
     sassc-rails (2.1.2)
@@ -298,7 +298,7 @@ GEM
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
-    webmock (3.19.1)
+    webmock (3.20.0)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)