Update gems

Gemfile.lock

@@ -2,17 +2,27 @@ GEM
   remote: https://rubygems.org/
   specs:
     base64 (0.3.0)
-    date (3.5.1)
     diff-lcs (1.6.2)
-    docile (1.4.1)
-    erb (6.0.4)
-    psych (5.4.0)
-      date
-      stringio
+    erb (6.0.7)
+    logger (1.7.0)
+    prism (2.1.0)
+    prism (2.1.0-aarch64-linux-gnu)
+    prism (2.1.0-aarch64-linux-musl)
+    prism (2.1.0-arm-linux-gnu)
+    prism (2.1.0-arm-linux-musl)
+    prism (2.1.0-arm64-darwin)
+    prism (2.1.0-x86_64-darwin)
+    prism (2.1.0-x86_64-linux-gnu)
+    prism (2.1.0-x86_64-linux-musl)
     rake (13.4.2)
-    rdoc (7.2.0)
+    rbs (4.2.0)
+      logger
+      prism (>= 1.6.0)
+      tsort
+    rdoc (8.1.0)
       erb
-      psych (>= 4.0.0)
+      prism (>= 1.6.0)
+      rbs (>= 4.0.0)
       tsort
     redcarpet (3.6.1)
     rspec (3.13.2)
@@ -28,18 +38,20 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    simplecov (0.22.0)
-      docile (~> 1.1)
-      simplecov-html (~> 0.11)
-      simplecov_json_formatter (~> 0.1)
-    simplecov-html (0.13.2)
-    simplecov_json_formatter (0.1.4)
-    stringio (3.2.0)
+    simplecov (1.3.2)
     syntax (1.2.2)
     tsort (0.2.0)
 
 PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
   ruby
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
 
 DEPENDENCIES
   base64