Bump rake from 12.0.0 to 12.3.3 (#14)

Bumps [rake](https://github.com/ruby/rake) from 12.0.0 to 12.3.3.
- [Release notes](https://github.com/ruby/rake/releases)
- [Changelog](https://github.com/ruby/rake/blob/master/History.rdoc)
- [Commits](https://github.com/ruby/rake/compare/v12.0.0...v12.3.3)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    goldfinger (2.1.0)
+    goldfinger (2.1.1)
       addressable (~> 2.5)
       http (~> 4.0)
       nokogiri (~> 1.8)
@@ -16,32 +16,37 @@ GEM
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     diff-lcs (1.3)
-    domain_name (0.5.20180417)
+    domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
+    ffi (1.12.2)
+    ffi-compiler (1.0.1)
+      ffi (>= 1.0.0)
+      rake
     fuubar (2.2.0)
       rspec-core (~> 3.0)
       ruby-progressbar (~> 1.4)
     hashdiff (0.3.4)
-    http (4.0.0)
+    http (4.3.0)
       addressable (~> 2.3)
       http-cookie (~> 1.0)
-      http-form_data (~> 2.0)
-      http_parser.rb (~> 0.6.0)
+      http-form_data (~> 2.2)
+      http-parser (~> 1.2.0)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    http-form_data (2.1.1)
-    http_parser.rb (0.6.0)
+    http-form_data (2.2.0)
+    http-parser (1.2.1)
+      ffi-compiler (>= 1.0, < 2.0)
     method_source (0.8.2)
     mini_portile2 (2.4.0)
-    nokogiri (1.10.5)
+    nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
-    oj (3.7.4)
+    oj (3.10.2)
     pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
     public_suffix (3.0.3)
-    rake (12.0.0)
+    rake (12.3.3)
     rspec (3.6.0)
       rspec-core (~> 3.6.0)
       rspec-expectations (~> 3.6.0)
@@ -60,7 +65,7 @@ GEM
     slop (3.6.0)
     unf (0.1.4)
       unf_ext
-    unf_ext (0.0.7.5)
+    unf_ext (0.0.7.6)
     webmock (3.0.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)