[DOCS] Add 7.17.4 release notes (#1961)

Author: jbaiera

docs/src/reference/asciidoc/appendix/release-notes/7.17.4.adoc

@@ -0,0 +1,8 @@
+[[eshadoop-7.17.4]]
+== Elasticsearch for Apache Hadoop version 7.17.4
+
+[[enhancements-7.17.4]]
+=== Enhancements
+Build::
+* Backport java 17 build support to 7.17
+https://github.com/elastic/elasticsearch-hadoop/pull/1950[#1950]

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-7.17.4>>
 * <<eshadoop-7.17.3>>
 * <<eshadoop-7.17.2>>
 * <<eshadoop-7.17.1>>
@@ -116,6 +117,7 @@ http://github.com/elastic/elasticsearch-hadoop/issues/XXX[#XXX]
 
 ////////////////////////
 
+include::release-notes/7.17.4.adoc[]
 include::release-notes/7.17.3.adoc[]
 include::release-notes/7.17.2.adoc[]
 include::release-notes/7.17.1.adoc[]