bump elasticsearch tree branch to 8.15 (#156)

jsvd · web-flow · commit f076a1dda343 · 2024-07-15T09:21:27.000-07:00
diff --git a/gradle.properties b/gradle.properties
@@ -1,2 +1,2 @@
 LOGSTASH_PATH=../../ls
-ELASTICSEARCH_TREEISH=8.14
+ELASTICSEARCH_TREEISH=8.15
