Bump elasticsearch from 7.8.1 to 7.9.0 (#9941)

* Bump elasticsearch from 7.8.1 to 7.9.0

Bumps [elasticsearch](https://github.com/elastic/elasticsearch-ruby) from 7.8.1 to 7.9.0.
- [Release notes](https://github.com/elastic/elasticsearch-ruby/releases)
- [Changelog](https://github.com/elastic/elasticsearch-ruby/blob/master/CHANGELOG.md)
- [Commits](https://github.com/elastic/elasticsearch-ruby/compare/v7.8.1...v7.9.0)

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

* Bump elasticsearch from 7.8.1 to 7.9.0 (Update vendor/cache)

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Gemfile

@@ -33,7 +33,7 @@ gem "devise", "~> 4.7" # Flexible authentication solution for Rails
 gem "devise_invitable", "~> 2.0.0" # Allows invitations to be sent for joining
 gem "dogstatsd-ruby", "~> 4.8" # A client for DogStatsD, an extension of the StatsD metric server for Datadog
 gem "doorkeeper", "~> 5.4" # Oauth 2 provider
-gem "elasticsearch", "~> 7.8" # Powers DEVs core search functionality
+gem "elasticsearch", "~> 7.9" # Powers DEVs core search functionality
 gem "email_validator", "~> 2.0" # Email validator for Rails and ActiveModel
 gem "emoji_regex", "~> 3.0" # A pair of Ruby regular expressions for matching Unicode Emoji symbols
 gem "faraday-http-cache", "~> 2.2" # Middleware to handle HTTP caching

Gemfile.lock

@@ -257,12 +257,12 @@ GEM
     dotenv-rails (2.7.6)
       dotenv (= 2.7.6)
       railties (>= 3.2)
-    elasticsearch (7.8.1)
-      elasticsearch-api (= 7.8.1)
-      elasticsearch-transport (= 7.8.1)
-    elasticsearch-api (7.8.1)
+    elasticsearch (7.9.0)
+      elasticsearch-api (= 7.9.0)
+      elasticsearch-transport (= 7.9.0)
+    elasticsearch-api (7.9.0)
       multi_json
-    elasticsearch-transport (7.8.1)
+    elasticsearch-transport (7.9.0)
       faraday (~> 1)
       multi_json
     em-websocket (0.5.1)
@@ -894,7 +894,7 @@ DEPENDENCIES
   dogstatsd-ruby (~> 4.8)
   doorkeeper (~> 5.4)
   dotenv-rails (~> 2.7.6)
-  elasticsearch (~> 7.8)
+  elasticsearch (~> 7.9)
   email_validator (~> 2.0)
   emoji_regex (~> 3.0)
   erb_lint (~> 0.0.34)