renaming factory girl => factory bot

Gemfile.lock

@@ -84,10 +84,10 @@ GEM
     encrypto_signo (1.0.0)
     erubi (1.8.0)
     execjs (2.7.0)
-    factory_girl (4.9.0)
+    factory_bot (4.11.1)
       activesupport (>= 3.0.0)
-    factory_girl_rails (4.9.0)
-      factory_girl (~> 4.9.0)
+    factory_bot_rails (4.11.1)
+      factory_bot (~> 4.11.1)
       railties (>= 3.0.0)
     faraday (0.15.2)
       multipart-post (>= 1.2, < 3)
@@ -262,7 +262,7 @@ DEPENDENCIES
   database_cleaner
   dynamic_form
   encrypto_signo
-  factory_girl_rails (~> 4.0)
+  factory_bot_rails (~> 4.0)
   foreman
   gelf
   haml