Update rubocop to version 0.80.1

Author: depfu[bot]

Gemfile.lock

@@ -121,7 +121,7 @@ GEM
     nokogiri (1.10.8)
       mini_portile2 (~> 2.4.0)
     parallel (1.19.1)
-    parser (2.7.0.2)
+    parser (2.7.0.3)
       ast (~> 2.4.0)
     pg (0.21.0)
     pry (0.12.2)
@@ -164,7 +164,7 @@ GEM
     rb-readline (0.5.5)
     regexp_parser (1.6.0)
     rexml (3.2.4)
-    rubocop (0.80.0)
+    rubocop (0.80.1)
       jaro_winkler (~> 1.5.1)
       parallel (~> 1.10)
       parser (>= 2.7.0.1)