Update backend dependencies (#215)

* Update to rails 7.2.2

* Update rubocop gems

* Comment out unused test/dev gems

* Update patch versions

Gemfile

@@ -45,11 +45,11 @@ gem "sqlite3"
 group :development, :test do
   # Call 'byebug' anywhere in the code to stop execution and get a debugger console
   gem "byebug", platforms: [:mri, :mingw, :x64_mingw]
-  gem "guard"
-  gem "guard-minitest"
+  # gem "guard"
+  # gem "guard-minitest"
   # Adds support for Capybara system testing and selenium driver
-  gem "capybara"
-  gem "selenium-webdriver"
+  # gem "capybara"
+  # gem "selenium-webdriver"
   # Compute test coverage
   gem "simplecov",      require: false
   gem "simplecov-lcov", require: false
@@ -142,4 +142,4 @@ gem "matrix"  # removed from stndard library in ruby 3.1
 # /dtis-app/rvm/rubies/ruby-3.3.5/lib/ruby/3.3.0/kconv.rb:13: warning: /dtis-app/rvm/rubies/ruby-3.3.5/lib/ruby/3.3.0/x86_64-linux/nkf.so was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.4.0.
 gem "nkf"
 # /d/rlafage/workspace/WhatsOpt/test/test_helper.rb:3: warning: /dtis-app/rvm/rubies/ruby-3.3.5/lib/ruby/3.3.0/csv.rb was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.4.0.
-gem "csv"
+gem "csv"