chore: remove support ruby<3.0

Author: itsmeadi

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       max-parallel: 1
       matrix:
-        ruby: ['2.5', '2.6', '2.7', '3.0', '3.1', '3.2']
+        ruby: ['3.0', '3.1', '3.2']
     name: 💎 Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v3

stream.gemspec

@@ -13,7 +13,7 @@ Gem::Specification.new do |gem|
   gem.extra_rdoc_files = %w[README.md LICENSE]
   gem.files = Dir['lib/**/*']
   gem.license = 'BSD-3-Clause'
-  gem.required_ruby_version = '>=2.5.0'
+  gem.required_ruby_version = '>=3.0.0'
   gem.metadata = {
     'rubygems_mfa_required' => 'false',
     'homepage_uri' => 'https://getstream.io/activity-feeds/',