docs: point links at renamed GitHub repo

The GitHub repository moved from cardmagic/solid_objects to
cardmagic/solid-objects-ruby. The gem name stays solid_objects.
Update the gemspec metadata URLs, the CI badge, and the generator
template link so they skip the redirect.

Author: cardmagic

README.md

@@ -1,6 +1,6 @@
 # Solid Objects
 
-[![CI](https://github.com/cardmagic/solid_objects/actions/workflows/ci.yml/badge.svg)](https://github.com/cardmagic/solid_objects/actions/workflows/ci.yml)
+[![CI](https://github.com/cardmagic/solid-objects-ruby/actions/workflows/ci.yml/badge.svg)](https://github.com/cardmagic/solid-objects-ruby/actions/workflows/ci.yml)
 
 **Self-hosted, distributed Durable Objects in Rails without a daemon using your existing SQL database.**
 

lib/generators/solid_objects/templates/solid_objects.rb

@@ -37,7 +37,7 @@
   #
   # Prefer policies that bind actor_type and actor_id to a trusted
   # authorization_context. See:
-  # https://github.com/cardmagic/solid_objects/blob/main/docs/authorization.md
+  # https://github.com/cardmagic/solid-objects-ruby/blob/main/docs/authorization.md
   # and run:
   #
   #   bin/rails solid_objects:doctor

solid_objects.gemspec

@@ -3,7 +3,7 @@
 require_relative "lib/solid_objects/version"
 
 Gem::Specification.new do |spec|
-  repository_url = "https://github.com/cardmagic/solid_objects"
+  repository_url = "https://github.com/cardmagic/solid-objects-ruby"
 
   spec.name = "solid_objects"
   spec.version = SolidObjects::VERSION