Bump shakapacker from 6.5.0 to 6.5.1

Bumps [shakapacker](https://github.com/shakacode/shakapacker) from 6.5.0 to 6.5.1.
- [Release notes](https://github.com/shakacode/shakapacker/releases)
- [Changelog](https://github.com/shakacode/shakapacker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/shakacode/shakapacker/compare/v6.5.0...v6.5.1)

---
updated-dependencies:
- dependency-name: shakapacker
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Gemfile

@@ -42,7 +42,7 @@ gem 'rest-client'
 gem 'rubytree'
 gem 'rubyzip'
 gem 'sass-rails'
-gem 'shakapacker', '= 6.5'
+gem 'shakapacker', '6.5.1'
 gem 'slim-rails'
 gem 'sorcery' # Causes a deprecation warning in Rails 6.0+, see: https://github.com/Sorcery/sorcery/pull/255
 gem 'telegraf'

Gemfile.lock

@@ -464,7 +464,7 @@ GEM
     sentry-ruby (5.4.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
     set (1.0.2)
-    shakapacker (6.5.0)
+    shakapacker (6.5.1)
       activesupport (>= 5.2)
       rack-proxy (>= 0.6.1)
       railties (>= 5.2)
@@ -611,7 +611,7 @@ DEPENDENCIES
   selenium-webdriver
   sentry-rails
   sentry-ruby
-  shakapacker (= 6.5)
+  shakapacker (= 6.5.1)
   shoulda-matchers
   simplecov
   slim-rails