Update dependencies, upgrade to Rails 7.1, require Ruby 3.x

Gemfile

@@ -2,7 +2,7 @@ source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
-gem 'rails', '~> 7.0.2'
+gem 'rails', '~> 7.1'
 # Use Puma as the app server
 gem 'puma', '~> 4.1'
 # View components
@@ -22,7 +22,7 @@ gem 'jbuilder', '~> 2.7'
 # Use Redis adapter to run Action Cable in production
 # gem 'redis', '~> 4.0'
 # Use Active Model has_secure_password
-gem 'bcrypt', '~> 3.1.7'
+gem 'bcrypt', '~> 3.1'
 
 # Configuration
 gem 'dotenv-rails'
@@ -62,14 +62,13 @@ gem "sentry-rails"
 gem 'discourse_api'
 gem "lnurl"
 gem 'manifique', git: 'https://gitea.kosmos.org/5apps/manifique.git', branch: 'master'
-gem 'nostr', git: 'https://gitea.kosmos.org/kosmos/nostr-gem.git', ref: 'd59f31a'
+gem 'nostr'
 
 group :development, :test do
   # Use sqlite3 as the database for Active Record
-  gem 'sqlite3', '~> 1.4'
+  gem 'sqlite3', '~> 1.7.2'
   gem 'rspec-rails'
   gem 'rails-controller-testing'
-  gem "byebug", "~> 11.1"
 end
 
 group :development do
@@ -90,8 +89,8 @@ group :test do
 end
 
 group :production do
-  # Use postgresql as the database for Active Record
-  gem 'pg', '~> 1.2.3'
+  gem 'pg', '~> 1.5'
 end
+
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]