Bump rpush from 5.3.0 to 5.4.0 (#13041)

Bumps [rpush](https://github.com/rpush/rpush) from 5.3.0 to 5.4.0.
- [Release notes](https://github.com/rpush/rpush/releases)
- [Changelog](https://github.com/rpush/rpush/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rpush/rpush/compare/v5.3.0...v5.4.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -81,7 +81,7 @@ gem "ransack", "~> 2.4" # Searching and sorting
 gem "recaptcha", "~> 5.7", require: "recaptcha/rails" # Helpers for the reCAPTCHA API
 gem "redcarpet", "~> 3.5" # A fast, safe and extensible Markdown to (X)HTML parser
 gem "redis", "~> 4.2.5" # Redis ruby client
-gem "rpush", "~> 5.3" # Push Notification library for Rails
+gem "rpush", "~> 5.4" # Push Notification library for Rails
 gem "rpush-redis", "~> 1.1" # Redis module capability for rpush library
 
 # NOTE: [@rhymes]: sign in doesn't work with the redis-rack 2.1.0+ or with redis-actionpack 5.2.0+

Gemfile.lock

@@ -658,7 +658,7 @@ GEM
     rexml (3.2.4)
     rolify (5.3.0)
     rouge (3.26.0)
-    rpush (5.3.0)
+    rpush (5.4.0)
       activesupport (>= 5.0)
       jwt (>= 1.5.6)
       multi_json (~> 1.0)
@@ -993,7 +993,7 @@ DEPENDENCIES
   reverse_markdown (~> 2.0)
   rolify (~> 5.3)
   rouge (~> 3.26)
-  rpush (~> 5.3)
+  rpush (~> 5.4)
   rpush-redis (~> 1.1)
   rspec-rails (~> 5.0)
   rspec-retry (~> 0.6)