Bump twilio-ruby from 5.27.0 to 5.28.0 (#4515) [ci skip]

Bumps [twilio-ruby](https://github.com/twilio/twilio-ruby) from 5.27.0 to 5.28.0.
- [Release notes](https://github.com/twilio/twilio-ruby/releases)
- [Changelog](https://github.com/twilio/twilio-ruby/blob/master/CHANGES.md)
- [Commits](https://github.com/twilio/twilio-ruby/compare/5.27.0...5.28.0)

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

Gemfile

@@ -91,7 +91,7 @@ gem "storext", "~> 3.1" # Add type-casting and other features on top of ActiveRe
 gem "stripe", "~> 4.23" # Ruby library for the Stripe API
 gem "timber", "~> 3.0" # Great Ruby logging made easy
 gem "timber-rails", "~> 1.0" #  Timber integration for Rails
-gem "twilio-ruby", "~> 5.27" # The official library for communicating with the Twilio REST API
+gem "twilio-ruby", "~> 5.28" # The official library for communicating with the Twilio REST API
 gem "twitter", "~> 6.2" # A Ruby interface to the Twitter API
 gem "uglifier", "~> 4.2" # Uglifier minifies JavaScript files
 gem "ulid", "~> 1.1" # Universally Unique Lexicographically Sortable Identifier implementation for Ruby

Gemfile.lock

@@ -781,7 +781,7 @@ GEM
       timber (~> 3.0)
       timber-rack (~> 1.0)
     timecop (0.9.1)
-    twilio-ruby (5.27.0)
+    twilio-ruby (5.28.0)
       faraday (~> 0.9)
       jwt (>= 1.5, <= 2.5)
       nokogiri (>= 1.6, < 2.0)
@@ -981,7 +981,7 @@ DEPENDENCIES
   timber (~> 3.0)
   timber-rails (~> 1.0)
   timecop (~> 0.9)
-  twilio-ruby (~> 5.27)
+  twilio-ruby (~> 5.28)
   twitter (~> 6.2)
   uglifier (~> 4.2)
   ulid (~> 1.1)