[DOCS] Add 7.17.11 release notes (#2104)

Author: jbaiera

docs/src/reference/asciidoc/appendix/release-notes/7.17.11.adoc

@@ -0,0 +1,8 @@
+[[eshadoop-7.17.11]]
+== Elasticsearch for Apache Hadoop version 7.17.11
+
+[[bugs-7.17.11]]
+=== Bug Fixes
+Core::
+* Replacing the use of Java object serialization with Jackson
+https://github.com/elastic/elasticsearch-hadoop/pull/2080[#2080]

docs/src/reference/asciidoc/appendix/release.adoc

@@ -9,6 +9,7 @@ This section summarizes the changes in each release.
 [[release-notes-7]]
 ===== 7.x
 
+* <<eshadoop-7.17.11>>
 * <<eshadoop-7.17.10>>
 * <<eshadoop-7.17.9>>
 * <<eshadoop-7.17.8>>
@@ -123,6 +124,7 @@ http://github.com/elastic/elasticsearch-hadoop/issues/XXX[#XXX]
 
 ////////////////////////
 
+include::release-notes/7.17.11.adoc[]
 include::release-notes/7.17.10.adoc[]
 include::release-notes/7.17.9.adoc[]
 include::release-notes/7.17.8.adoc[]