Fix tests in CRuby 2.6 and JRuby

Author: sferik

Gemfile

@@ -16,7 +16,7 @@ group :test do
 end
 
 group :development do
-  gem "rubocop"
+  gem "rubocop", "~> 1.50.2"
   gem "rubocop-minitest"
   gem "rubocop-performance"
   gem "rubocop-rake"

Gemfile.lock

@@ -20,27 +20,27 @@ GEM
     docile (1.4.0)
     execjs (2.9.1)
     json (2.7.1)
-    language_server-protocol (3.17.0.3)
+    json (2.7.1-java)
     minitest (5.20.0)
     parallel (1.24.0)
     parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     racc (1.7.3)
+    racc (1.7.3-java)
     rack (3.0.8)
     rainbow (3.1.1)
     rake (13.1.0)
     regexp_parser (2.8.3)
     rexml (3.2.6)
-    rubocop (1.59.0)
+    rubocop (1.50.2)
       json (~> 2.3)
-      language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.4)
+      parser (>= 3.2.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.30.0, < 2.0)
+      rubocop-ast (>= 1.28.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.30.0)
@@ -66,12 +66,13 @@ GEM
 PLATFORMS
   arm64-darwin-22
   ruby
+  universal-java-1.8
 
 DEPENDENCIES
   bundler (~> 2.4.0)
   minitest
   rake (>= 11)
-  rubocop
+  rubocop (~> 1.50.2)
   rubocop-minitest
   rubocop-performance
   rubocop-rake