Gemfile.lock in markdown_exec-1.5 vs Gemfile.lock in markdown_exec-1.6

@@ -1,9 +1,9 @@
 PATH
   remote: .
   specs:
-    markdown_exec (1.5)
+    markdown_exec (1.6)
       clipboard (~> 1.3.6)
       open3 (~> 0.1.1)
       optparse (~> 0.1.1)
       tty-prompt (~> 0.23.1)
       yaml (~> 0.2.0)
@@ -137,10 +137,12 @@
       rubocop (~> 1.0)
     rubocop-rspec (2.24.1)
       rubocop (~> 1.33)
       rubocop-capybara (~> 2.17)
       rubocop-factory_bot (~> 2.22)
+    ruby-graphviz (1.2.5)
+      rexml
     ruby-progressbar (1.13.0)
     ruby2_keywords (0.0.5)
     shellwords (0.1.0)
     thor (1.2.2)
     tty-color (0.6.0)
@@ -155,10 +157,12 @@
     tty-screen (0.8.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)
     uri (0.12.2)
+    visual_call_graph (0.4.0)
+      ruby-graphviz (~> 1.2, >= 1.2.0)
     wisper (2.0.1)
     yaml (0.2.1)
     zeitwerk (2.6.12)
 
 PLATFORMS
@@ -180,9 +184,10 @@
   rubocop-minitest
   rubocop-rake
   rubocop-rspec
   shellwords
   uri
+  visual_call_graph
   yaml (~> 0.2.1)
 
 BUNDLED WITH
    2.4.13