fix: example/animal-service/Gemfile to reduce vulnerabilities (#263)

snyk-bot · web-flow · commit 8f3b7321e0a5 · 2022-05-10T09:51:31.000+10:00
The following vulnerabilities are fixed with an upgrade: - https://snyk.io/vuln/SNYK-RUBY-SINATRA-2806372
diff --git a/example/animal-service/Gemfile b/example/animal-service/Gemfile
@@ -10,4 +10,4 @@ gem 'rake'
 gem 'rack', '~> 2.1'
 gem 'sqlite3'
 gem 'sequel'
-gem 'sinatra'
+gem 'sinatra', '>= 2.2.0'
