Bump redis-namespace from 1.9.0 to 1.11.0

Bumps [redis-namespace](https://github.com/resque/redis-namespace) from 1.9.0 to 1.11.0.
- [Release notes](https://github.com/resque/redis-namespace/releases)
- [Changelog](https://github.com/resque/redis-namespace/blob/master/CHANGELOG.md)
- [Commits](resque/redis-namespace@v1.9...v1.11.0)

---
updated-dependencies:
- dependency-name: redis-namespace
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile

@@ -51,7 +51,7 @@ gem 'ed25519', '~> 1.3'
 gem 'fast_blank', '~> 1.0'
 gem 'fastimage'
 gem 'hiredis', '~> 0.6'
-gem 'redis-namespace', '~> 1.9'
+gem 'redis-namespace', '~> 1.11'
 gem 'htmlentities', '~> 4.3'
 gem 'http', '~> 5.1'
 gem 'http_accept_language', '~> 2.1'

Gemfile.lock

@@ -541,7 +541,7 @@ GEM
       rdf (~> 3.2)
     redcarpet (3.5.1)
     redis (4.5.1)
-    redis-namespace (1.9.0)
+    redis-namespace (1.11.0)
       redis (>= 4)
     regexp_parser (2.5.0)
     request_store (1.5.1)
@@ -824,7 +824,7 @@ DEPENDENCIES
   rdf-normalize (~> 0.5)
   redcarpet (~> 3.5)
   redis (~> 4.5)
-  redis-namespace (~> 1.9)
+  redis-namespace (~> 1.11)
   rexml (~> 3.2)
   rqrcode (~> 2.1)
   rspec-rails (~> 5.1)