build: update 4.17.2 and 4.16.7 to latest_release and stable_release (#4627)

Author: StevenLuMT

site3/website/docusaurus.config.js

@@ -7,8 +7,8 @@ const baseUrl = process.env.BASE_URL || "/"
 const deployUrl = process.env.DEPLOY_URL || "https://bookkeeper.apache.org";
 const variables = {
   /** They are used in .md files*/
-  latest_release: "4.17.1",
-  stable_release: "4.16.6",
+  latest_release: "4.17.2",
+  stable_release: "4.16.7",
   github_repo: "https://github.com/apache/bookkeeper",
   github_master: "https://github.com/apache/bookkeeper/tree/master",
   mirror_base_url: "https://www.apache.org/dyn/closer.lua/bookkeeper",