try updating rubocop so it does not crash

Gemfile.lock

@@ -42,7 +42,7 @@ GEM
       activerecord (>= 3.2, < 6.0)
       rake (>= 10.4, < 13.0)
     arel (8.0.0)
-    ast (2.3.0)
+    ast (2.4.0)
     aws-partitions (1.24.0)
     aws-sdk-core (3.6.0)
       aws-partitions (~> 1.0)
@@ -239,9 +239,9 @@ GEM
     openid-redis-store (0.0.2)
       redis
       ruby-openid
-    parallel (1.12.0)
-    parser (2.4.0.0)
-      ast (~> 2.2)
+    parallel (1.12.1)
+    parser (2.5.0.3)
+      ast (~> 2.4.0)
     pg (0.21.0)
     powerpack (0.1.1)
     progress (3.3.1)
@@ -280,10 +280,9 @@ GEM
       method_source
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.2.2)
-      rake
+    rainbow (3.0.0)
     raindrops (0.19.0)
-    rake (12.1.0)
+    rake (12.3.0)
     rake-compiler (1.0.4)
       rake
     rb-fsevent (0.9.8)
@@ -326,11 +325,11 @@ GEM
       rspec-support (~> 3.6.0)
     rspec-support (3.6.0)
     rtlit (0.0.5)
-    rubocop (0.51.0)
+    rubocop (0.53.0)
       parallel (~> 1.10)
-      parser (>= 2.3.3.1, < 3.0)
+      parser (>= 2.5)
       powerpack (~> 0.1)
-      rainbow (>= 2.2.2, < 3.0)
+      rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-openid (2.7.0)