Version bump and changelog entry for 9.2.2

Fixes #802

Author: robbavey

Diff for: CHANGELOG.md

@@ -1,3 +1,6 @@
+## 9.2.2
+  - Fixed numerous issues relating to builds on Travis [#799](https://github.com/logstash-plugins/logstash-output-elasticsearch/pull/799)
+
 ## 9.2.1
   - Added text offering hosted Elasticsearch service
 

Diff for: logstash-output-elasticsearch.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name            = 'logstash-output-elasticsearch'
-  s.version         = '9.2.1'
+  s.version         = '9.2.2'
   s.licenses        = ['apache-2.0']
   s.summary         = "Stores logs in Elasticsearch"
   s.description     = "This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program"