Update goldfinger to 2.0.1, see tootsuite/goldfinger#5 (#4527)

Gemfile.lock

@@ -165,7 +165,7 @@ GEM
       ruby-progressbar (~> 1.4)
     globalid (0.4.0)
       activesupport (>= 4.2.0)
-    goldfinger (2.0.0)
+    goldfinger (2.0.1)
       addressable (~> 2.5)
       http (~> 2.2)
       nokogiri (~> 1.8)
@@ -264,7 +264,7 @@ GEM
       mini_portile2 (~> 2.2.0)
     nokogumbo (1.4.13)
       nokogiri
-    oj (3.2.0)
+    oj (3.3.4)
     openssl (2.0.4)
     orm_adapter (0.5.0)
     ostatus2 (2.0.1)
@@ -590,4 +590,4 @@ RUBY VERSION
    ruby 2.4.1p111
 
 BUNDLED WITH
-   1.15.2
+   1.15.3