Update Ruby version

Author: apexatoll

.ruby-version

@@ -0,0 +1 @@
+3.2.0

aoc_cli.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |spec|
   spec.description = "A command-line interface for the Advent of Code puzzles. Features include downloading puzzles and inputs, solving puzzles and tracking year progress from within the terminal"
   spec.homepage = "https://github.com/apexatoll/aoc-cli"
   spec.license = "MIT"
-  spec.required_ruby_version = Gem::Requirement.new(">= 2.3.0")
+  spec.required_ruby_version = ">= 3.2.0"
   spec.metadata["homepage_uri"] = spec.homepage
   spec.metadata["source_code_uri"] = "https://github.com/apexatoll/aoc-cli"
   spec.metadata["changelog_uri"] = "https://github.com/apexatoll/aoc-cli/CHANGELOG.md"