[DOCS] Add 7.17.3 release notes (#1952)

Author: jbaiera

docs/src/reference/asciidoc/appendix/release-notes/7.17.3.adoc

@@ -0,0 +1,9 @@
+[[eshadoop-7.17.3]]
+== Elasticsearch for Apache Hadoop version 7.17.3
+
+[[bugs-7.17.3]]
+=== Bug Fixes
+Core::
+* Fixing DST bug in data_nanos support (#1943)
+https://github.com/elastic/elasticsearch-hadoop/pull/1943[#1943]
+https://github.com/elastic/elasticsearch-hadoop/pull/1948[#1948]

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-7.17.3>>
 * <<eshadoop-7.17.2>>
 * <<eshadoop-7.17.1>>
 * <<eshadoop-7.17.0>>
@@ -115,6 +116,7 @@ http://github.com/elastic/elasticsearch-hadoop/issues/XXX[#XXX]
 
 ////////////////////////
 
+include::release-notes/7.17.3.adoc[]
 include::release-notes/7.17.2.adoc[]
 include::release-notes/7.17.1.adoc[]
 include::release-notes/7.17.0.adoc[]