Drop support to Ruby 3.1 (#1225)

Author: aidanharan

.github/workflows/ci.yml

@@ -22,7 +22,6 @@ jobs:
         ruby:
           - 3.3.4
           - 3.2.5
-          - 3.1.6
 
     steps:
       - name: Checkout code

activerecord-sqlserver-adapter.gemspec

@@ -7,7 +7,7 @@ Gem::Specification.new do |spec|
   spec.platform      = Gem::Platform::RUBY
   spec.version       = version
 
-  spec.required_ruby_version = ">= 3.1.0"
+  spec.required_ruby_version = ">= 3.2.0"
 
   spec.license       = "MIT"
   spec.authors       = ["Ken Collins", "Anna Carey", "Will Bond", "Murray Steele", "Shawn Balestracci", "Joe Rafaniello", "Tom Ward", "Aidan Haran"]