Bump redis-namespace from 1.7.0 to 1.8.0 (#14623)

Bumps [redis-namespace](https://github.com/resque/redis-namespace) from 1.7.0 to 1.8.0.
- [Release notes](https://github.com/resque/redis-namespace/releases)
- [Changelog](https://github.com/resque/redis-namespace/blob/master/CHANGELOG.md)
- [Commits](https://github.com/resque/redis-namespace/compare/v1.7.0...v1.8.0)

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

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

Gemfile

@@ -56,7 +56,7 @@ gem 'fast_blank', '~> 1.0'
 gem 'fastimage'
 gem 'goldfinger', '~> 2.1'
 gem 'hiredis', '~> 0.6'
-gem 'redis-namespace', '~> 1.7'
+gem 'redis-namespace', '~> 1.8'
 gem 'health_check', git: 'https://github.com/ianheggie/health_check', ref: '0b799ead604f900ed50685e9b2d469cd2befba5b'
 gem 'htmlentities', '~> 4.3'
 gem 'http', '~> 4.4'

Gemfile.lock

@@ -491,7 +491,7 @@ GEM
     redis-activesupport (5.2.0)
       activesupport (>= 3, < 7)
       redis-store (>= 1.3, < 2)
-    redis-namespace (1.7.0)
+    redis-namespace (1.8.0)
       redis (>= 3.0.4)
     redis-rack (2.1.3)
       rack (>= 2.0.8, < 3)
@@ -774,7 +774,7 @@ DEPENDENCIES
   rails-settings-cached (~> 0.6)
   rdf-normalize (~> 0.4)
   redis (~> 4.2)
-  redis-namespace (~> 1.7)
+  redis-namespace (~> 1.8)
   redis-rails (~> 5.0)
   rqrcode (~> 1.1)
   rspec-rails (~> 4.0)