[deploy] Bump elasticsearch from 7.7.0 to 7.8.0 (#8800)

* Bump elasticsearch from 7.7.0 to 7.8.0

Bumps [elasticsearch](https://github.com/elastic/elasticsearch-ruby) from 7.7.0 to 7.8.0.
- [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/7.7.0...v7.8.0)

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

* Bump elasticsearch from 7.7.0 to 7.8.0 (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 "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 "dry-struct", "~> 1.2" # Typed structs and value objects
-gem "elasticsearch", "~> 7.7" # Powers DEVs core search functionality
+gem "elasticsearch", "~> 7.8" # 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 "envied", "~> 0.9" # Ensure presence and type of your app's ENV-variables

Gemfile.lock

@@ -282,12 +282,12 @@ GEM
       dry-equalizer (~> 0.3)
       dry-inflector (~> 0.1, >= 0.1.2)
       dry-logic (~> 1.0, >= 1.0.2)
-    elasticsearch (7.7.0)
-      elasticsearch-api (= 7.7.0)
-      elasticsearch-transport (= 7.7.0)
-    elasticsearch-api (7.7.0)
+    elasticsearch (7.8.0)
+      elasticsearch-api (= 7.8.0)
+      elasticsearch-transport (= 7.8.0)
+    elasticsearch-api (7.8.0)
       multi_json
-    elasticsearch-transport (7.7.0)
+    elasticsearch-transport (7.8.0)
       faraday (~> 1)
       multi_json
     em-websocket (0.5.1)
@@ -909,7 +909,7 @@ DEPENDENCIES
   dogstatsd-ruby (~> 4.8)
   doorkeeper (~> 5.4)
   dry-struct (~> 1.2)
-  elasticsearch (~> 7.7)
+  elasticsearch (~> 7.8)
   email_validator (~> 2.0)
   emoji_regex (~> 3.0)
   envied (~> 0.9)