Gemfile in pgtk-0.9.2 vs Gemfile in pgtk-0.9.4

@@ -20,5 +20,14 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
 source 'https://rubygems.org'
 gemspec
+
+gem 'minitest', '5.24.1', require: false
+gem 'rack', '3.1.7', require: false
+gem 'rake', '13.2.1', require: false
+gem 'rspec-rails', '6.1.3', require: false
+gem 'rubocop', '1.65.0', require: false
+gem 'rubocop-rspec', '3.0.2', require: false
+gem 'simplecov', '0.22.0', require: false
+gem 'xcop', '0.7.1', require: false