Updates version to 2.0.1 and adds release notes (#189)

Signed-off-by: Shivani Shukla <sshkamz@amazon.com>

Author: sshivanii

logstash-output-opensearch.gemspec

@@ -11,7 +11,7 @@ signing_key_path = "gem-private_key.pem"
 
 Gem::Specification.new do |s|
   s.name            = 'logstash-output-opensearch'
-  s.version         = '2.0.0'
+  s.version         = '2.0.1'
 
   s.licenses        = ['Apache-2.0']
   s.summary         = "Stores logs in OpenSearch"

release-notes/logstash-output-opensearch-release-notes-2.0.1.md

@@ -0,0 +1,12 @@
+## Version 2.0.1 Release Notes
+Compatible with OpenSearch 1.3+, 2.0+
+
+### Bug Fixes
+* Fix a gzip compression issue when sending partial bulk requests (#183)
+
+### Documentation
+* Update the OpenSearch documentation website link for this plugin (#178)
+* Updated MAINTAINERS.md format. (#185)
+
+### Infrastructure
+* Add release workflows (#188)