7.15.2-version-bump (#2277)

Author: karenzone

shared/versions/stack/7.15.asciidoc

@@ -1,12 +1,12 @@
-:version:                7.15.1
+:version:                7.15.2
 ////
 bare_version never includes -alpha or -beta
 ////
-:bare_version:           7.15.1
-:logstash_version:       7.15.1
-:elasticsearch_version:  7.15.1
-:kibana_version:         7.15.1
-:apm_server_version:     7.15.1
+:bare_version:           7.15.2
+:logstash_version:       7.15.2
+:elasticsearch_version:  7.15.2
+:kibana_version:         7.15.2
+:apm_server_version:     7.15.2
 :branch:                 7.15
 :minor-version:          7.15
 :major-version:          7.x