chore: [Snyk] Fix for 7 vulnerabilities (#6075)

* fix: Gemfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-RUBY-LOOFAH-3168317
- https://snyk.io/vuln/SNYK-RUBY-LOOFAH-3168318
- https://snyk.io/vuln/SNYK-RUBY-LOOFAH-3168649
- https://snyk.io/vuln/SNYK-RUBY-RAILSHTMLSANITIZER-3168316
- https://snyk.io/vuln/SNYK-RUBY-RAILSHTMLSANITIZER-3168646
- https://snyk.io/vuln/SNYK-RUBY-RAILSHTMLSANITIZER-3168647
- https://snyk.io/vuln/SNYK-RUBY-RAILSHTMLSANITIZER-3168648

* chore: update gemlock

Co-authored-by: snyk-bot <snyk-bot@snyk.io>

Gemfile

@@ -4,7 +4,7 @@ ruby '3.0.4'
 
 ##-- base gems for rails --##
 gem 'rack-cors', require: 'rack/cors'
-gem 'rails', '~>6.1'
+gem 'rails', '~> 6.1', '>= 6.1.6.1'
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', require: false
 
@@ -56,7 +56,7 @@ gem 'activerecord-import'
 gem 'dotenv-rails'
 gem 'foreman'
 gem 'puma'
-gem 'webpacker', '~> 5.x'
+gem 'webpacker', '~> 5.4', '>= 5.4.3'
 # metrics on heroku
 gem 'barnes'
 
@@ -94,7 +94,7 @@ gem 'ddtrace'
 gem 'elastic-apm'
 gem 'newrelic_rpm'
 gem 'scout_apm'
-gem 'sentry-rails', '~> 5.3'
+gem 'sentry-rails', '~> 5.3', '>= 5.3.1'
 gem 'sentry-ruby', '~> 5.3'
 gem 'sentry-sidekiq', '~> 5.3'
 
@@ -175,7 +175,7 @@ group :development, :test do
   gem 'mock_redis'
   gem 'pry-rails'
   gem 'rspec_junit_formatter'
-  gem 'rspec-rails', '~> 5.0.0'
+  gem 'rspec-rails', '~> 5.0.3'
   gem 'rubocop', require: false
   gem 'rubocop-performance', require: false
   gem 'rubocop-rails', require: false