Gemfile.lock in fluent-plugin-formatter-protobuf-0.0.3 vs Gemfile.lock in fluent-plugin-formatter-protobuf-0.0.4

@@ -1,15 +1,16 @@
 PATH
   remote: .
   specs:
-    fluent-plugin-formatter-protobuf (0.0.3)
+    fluent-plugin-formatter-protobuf (0.0.4)
       fluentd (>= 1.0, < 2)
       google-protobuf (~> 3.18)
 
 GEM
   remote: https://rubygems.org/
   specs:
+    ast (2.4.2)
     concurrent-ruby (1.1.9)
     cool.io (1.7.1)
     fluentd (1.14.1)
       bundler
       cool.io (>= 1.4.5, < 2.0.0)
@@ -23,31 +24,54 @@
       webrick (>= 1.4.2, < 1.8.0)
       yajl-ruby (~> 1.0)
     google-protobuf (3.18.1-x86_64-linux)
     http_parser.rb (0.7.0)
     msgpack (1.4.2)
+    parallel (1.21.0)
+    parser (3.0.2.0)
+      ast (~> 2.4.1)
     power_assert (2.0.1)
+    rainbow (3.0.0)
     rake (13.0.6)
+    regexp_parser (2.1.1)
+    rexml (3.2.5)
+    rubocop (1.22.1)
+      parallel (~> 1.10)
+      parser (>= 3.0.0.0)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml
+      rubocop-ast (>= 1.12.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 1.4.0, < 3.0)
+    rubocop-ast (1.12.0)
+      parser (>= 3.0.1.1)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    ruby-progressbar (1.11.0)
     serverengine (2.2.4)
       sigdump (~> 0.2.2)
     sigdump (0.2.4)
     strptime (0.2.5)
     test-unit (3.3.9)
       power_assert
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     tzinfo-data (1.2021.3)
       tzinfo (>= 1.0.0)
+    unicode-display_width (2.1.0)
     webrick (1.7.0)
     yajl-ruby (1.4.1)
 
 PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
   bundler (~> 2.2.22)
   fluent-plugin-formatter-protobuf!
   rake (~> 13.0.3)
+  rubocop (~> 1.22.1)
+  rubocop-rake (~> 0.6.0)
   test-unit (~> 3.3.7)
 
 BUNDLED WITH
    2.2.29