Fix remaining Dependabot security alerts

examples/stacks/django/requirements.txt

@@ -1,4 +1,4 @@
 asgiref==3.6.0
 Django==4.2.29
 psycopg2==2.9.5
-sqlparse==0.5.0
+sqlparse==0.5.3

examples/stacks/rails/blog/Gemfile

@@ -1,10 +1,10 @@
 source "https://rubygems.org"
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby "3.3.0"
+ruby ">= 3.1.0"
 
 # Bundle edge Rails instead: gem "rails", github: "rails/rails", branch: "main"
-gem "rails", "~> 7.1.5"
+gem "rails", "~> 7.2.2"
 
 # The original asset pipeline for Rails [https://github.com/rails/sprockets-rails]
 gem "sprockets-rails"