Revert "Bump rubocop and standard"

This reverts commit 39bca8b.

Gemfile.lock

@@ -130,7 +130,7 @@ GEM
       aws-sigv4 (~> 1.6)
     aws-sigv4 (1.6.0)
       aws-eventstream (~> 1, >= 1.0.2)
-    base64 (0.2.0)
+    base64 (0.1.1)
     bcrypt (3.1.19)
     bcrypt_pbkdf (1.1.0)
     bootsnap (1.17.0)
@@ -339,7 +339,7 @@ GEM
     public_suffix (5.0.3)
     puma (6.4.0)
       nio4r (~> 2.0)
-    racc (1.7.3)
+    racc (1.7.1)
     rack (2.2.8)
     rack-cors (2.0.1)
       rack (>= 2.0.0)
@@ -415,18 +415,19 @@ GEM
       rspec-mocks (~> 3.12)
       rspec-support (~> 3.12)
     rspec-support (3.12.1)
-    rubocop (1.57.2)
+    rubocop (1.56.4)
+      base64 (~> 0.1.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.4)
+      parser (>= 3.2.2.3)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
       rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.30.0)
+    rubocop-ast (1.29.0)
       parser (>= 3.2.1.0)
     rubocop-performance (1.19.1)
       rubocop (>= 1.7.0, < 2.0)
@@ -482,10 +483,10 @@ GEM
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     staccato (0.5.3)
-    standard (1.32.0)
+    standard (1.31.2)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.57.2)
+      rubocop (~> 1.56.4)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.2)
     standard-custom (1.0.2)