chore(deps): update dependency ruby to v4

Author: renovate[bot]

.github/workflows/gem-push.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Ruby 3.4
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: '3.4'
+        ruby-version: '4.0.6'
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
 
     - name: Generate man page

.mise.toml

@@ -1,5 +1,5 @@
 [tools]
-ruby = "3.4.1"
+ruby = "4.0.6"
 "gem:bundler" = "4.0.4"
 
 [tasks.install]

.tool-versions

@@ -1 +1 @@
-ruby 3.4.1
+ruby 4.0.6