fix: Gemfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-RUBY-RACK-13378928
- https://snyk.io/vuln/SNYK-RUBY-RACK-13378930
- https://snyk.io/vuln/SNYK-RUBY-RACK-13378932

Author: snyk-io[bot]

Gemfile

@@ -2,8 +2,8 @@ source 'https://rubygems.org'
 
 gemspec
 
-gem 'devise', '~> 4.8'
-gem 'rails', '~> 7.0.0'
+gem 'devise', '~> 4.9', '>= 4.9.0'
+gem 'rails', '~> 7.0.2', '>= 7.0.2.3'
 gem 'sqlite3'
 
 gem 'mocha', '~> 1.0', require: false