fix 修复elasticsearch启动失败问题，统一分词器版本

docker/elk/elasticsearch/plugins/elasticsearch-analysis-ik-7.17.2/plugin-descriptor.properties

@@ -34,7 +34,7 @@
 description=IK Analyzer for Elasticsearch
 #
 # 'version': plugin's version
-version=7.17.2
+version=7.17.6
 #
 # 'name': the plugin name
 name=analysis-ik
@@ -53,4 +53,4 @@ java.version=1.8
 # elasticsearch release. This version is checked when the plugin
 # is loaded so Elasticsearch will refuse to start in the presence of
 # plugins with the incorrect elasticsearch.version.
-elasticsearch.version=7.17.2
+elasticsearch.version=7.17.6