upgrade jdk to 21.0.7+6 (#17591) (#17593)

(cherry picked from commit 8a71eb7)

Co-authored-by: kaisecheng <[email protected]>

Author: mergify[bot]

versions.yml

@@ -7,8 +7,8 @@ logstash-core-plugin-api: 2.1.16
 bundled_jdk:
   # for AdoptOpenJDK/OpenJDK jdk-14.0.1+7.1, the revision is 14.0.1 while the build is 7.1
   vendor: "adoptium"
-  revision: 21.0.6
-  build: 7
+  revision: 21.0.7
+  build: 6
 
 # jruby must reference a *released* version of jruby which can be downloaded from the official download url
 # *and* for which jars artifacts are published for compile-time