Avoid buggy versions of factory_bot_rails

There's a bug in the latest version of `factory_bot_rails`:
thoughtbot/factory_bot_rails#433

There's also a fix that hasn't been merged or released yet:
thoughtbot/factory_bot_rails#432

I'm setting the `Gemfile` to specifically avoid those buggy versions so
that we can get `depfu` un-blocked with keeping gems up to date.

Gemfile

@@ -64,7 +64,8 @@ group :development, :test do
   gem "simplecov", require: false
 
   # Generate test objects.
-  gem "factory_bot_rails"
+  # 6.3.0 and 6.4.0 have a bug https://github.com/thoughtbot/factory_bot_rails/issues/433
+  gem 'factory_bot_rails', '~> 6.2', "!= 6.3.0", "!= 6.4.0"
 end
 
 group :development do

Gemfile.lock

@@ -668,7 +668,7 @@ DEPENDENCIES
   debug
   devise
   devise-two-factor
-  factory_bot_rails
+  factory_bot_rails (~> 6.2, != 6.4.0, != 6.3.0)
   foreman
   honeybadger
   jbuilder