Run rails upgrade task

next bundle exec rails app:update

bin/spring

@@ -1,18 +1,14 @@
 #!/usr/bin/env ruby
-
-# This file loads spring without using Bundler, in order to be fast
-# It gets overwritten when you run the `spring binstub` command
-
-unless defined?(Spring)
-  require "rubygems"
+if !defined?(Spring) && [nil, 'development', 'test'].include?(ENV['RAILS_ENV'])
+  gem "bundler"
   require "bundler"
 
-  if match = Bundler.default_lockfile.read.match(/^GEM$.*?^    spring \((.*?)\)$.*?^$/m)
-    ENV["GEM_PATH"] = ([Bundler.bundle_path.to_s] + Gem.path).join(File::PATH_SEPARATOR)
-    ENV["GEM_HOME"] = ""
-    Gem.paths = ENV
-
-    gem "spring", match[1]
-    require "spring/binstub"
+  # Load Spring without loading other gems in the Gemfile, for speed.
+  Bundler.locked_gems&.specs&.find { |spec| spec.name == 'spring' }&.tap do |spring|
+    Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
+    gem 'spring', spring.version
+    require 'spring/binstub'
+  rescue Gem::LoadError
+    # Ignore when Spring is not installed.
   end
 end