Bump redis from 4.0.3 to 4.1.0 (mastodon#9520)

Bumps [redis](https://github.com/redis/redis-rb) from 4.0.3 to 4.1.0.
- [Release notes](https://github.com/redis/redis-rb/releases)
- [Changelog](https://github.com/redis/redis-rb/blob/master/CHANGELOG.md)
- [Commits](redis/redis-rb@v4.0.3...v4.1.0)

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

Gemfile

@@ -69,7 +69,7 @@ gem 'rack-attack', '~> 5.4'
 gem 'rack-cors', '~> 1.0', require: 'rack/cors'
 gem 'rails-i18n', '~> 5.1'
 gem 'rails-settings-cached', '~> 0.6'
-gem 'redis', '~> 4.0', require: ['redis', 'redis/connection/hiredis']
+gem 'redis', '~> 4.1', require: ['redis', 'redis/connection/hiredis']
 gem 'mario-redis-lock', '~> 1.2', require: 'redis_lock'
 gem 'rqrcode', '~> 0.10'
 gem 'sanitize', '~> 5.0'

Gemfile.lock

@@ -476,7 +476,7 @@ GEM
       link_header (~> 0.0, >= 0.0.8)
     rdf-normalize (0.3.3)
       rdf (>= 2.2, < 4.0)
-    redis (4.0.3)
+    redis (4.1.0)
     redis-actionpack (5.0.2)
       actionpack (>= 4.0, < 6)
       redis-rack (>= 1, < 3)
@@ -737,7 +737,7 @@ DEPENDENCIES
   rails-i18n (~> 5.1)
   rails-settings-cached (~> 0.6)
   rdf-normalize (~> 0.3)
-  redis (~> 4.0)
+  redis (~> 4.1)
   redis-namespace (~> 1.5)
   redis-rails (~> 5.0)
   rqrcode (~> 0.10)