Make the release script update Gemfile.lock

Author: alexeyr

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    react_on_rails (14.2.0)
+    react_on_rails (15.0.0.alpha.2)
       addressable
       connection_pool
       execjs (~> 2.5)

rakelib/release.rake

@@ -77,8 +77,9 @@ task :release, %i[gem_version dry_run tools_install] do |_t, args|
   msg = <<~MSG
     Once you have successfully published, run these commands to update the spec apps:
 
+    bundle install
     cd #{dummy_app_dir}; bundle update react_on_rails
-    cd #{gem_root}#{' '}
+    cd #{gem_root}
     git commit -a -m 'Update Gemfile.lock for spec app'
     git push
   MSG