Bump responders from 2.4.1 to 3.0.1

Bumps [responders](https://github.com/heartcombo/responders) from 2.4.1 to 3.0.1.
- [Release notes](https://github.com/heartcombo/responders/releases)
- [Changelog](https://github.com/heartcombo/responders/blob/master/CHANGELOG.md)
- [Commits](heartcombo/responders@v2.4.1...v3.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Gemfile

@@ -44,7 +44,7 @@ gem "pg_search", "~> 2.3.0"
 gem "puma", "~> 4.3.5"
 gem "recipient_interceptor", "~> 0.2.0"
 gem "redcarpet", "~> 3.4.0"
-gem "responders", "~> 2.4.0"
+gem "responders", "~> 3.0.1"
 gem "rinku", "~> 2.0.2", require: "rails_rinku"
 gem "rollbar", "~> 2.27.0"
 gem "sassc-rails", "~> 2.1.2"

Gemfile.lock

@@ -323,7 +323,7 @@ GEM
       actionmailer (>= 3.2)
       letter_opener (~> 1.0)
       railties (>= 3.2)
-    loofah (2.6.0)
+    loofah (2.7.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -456,9 +456,9 @@ GEM
     regexp_parser (1.7.1)
     request_store (1.4.0)
       rack (>= 1.4)
-    responders (2.4.1)
-      actionpack (>= 4.2.0, < 6.0)
-      railties (>= 4.2.0, < 6.0)
+    responders (3.0.1)
+      actionpack (>= 5.0)
+      railties (>= 5.0)
     retriable (3.1.2)
     rexml (3.2.4)
     rinku (2.0.4)
@@ -684,7 +684,7 @@ DEPENDENCIES
   rails-assets-markdown-it (~> 9.0.1)!
   recipient_interceptor (~> 0.2.0)
   redcarpet (~> 3.4.0)
-  responders (~> 2.4.0)
+  responders (~> 3.0.1)
   rinku (~> 2.0.2)
   rollbar (~> 2.27.0)
   rspec-rails (~> 3.8)