fix: fix post-release dependency updates generation (#896)

lib/security_blog.js

@@ -250,12 +250,8 @@ export default class SecurityBlog extends SecurityRelease {
     if (Object.keys(dependencyUpdates).length === 0) return '';
     let template = '\nThis security release includes the following dependency' +
       ' updates to address public vulnerabilities:\n';
-    for (const dependencyUpdate of Object.values(dependencyUpdates)) {
-      for (const dependency of dependencyUpdate) {
-        const title = dependency.title.substring(dependency.title.indexOf(':') + ':'.length).trim();
-        template += `- ${title}\
- on ${dependency.affectedVersions.join(', ')}\n`;
-      }
+    for (const [dependency, { versions, affectedVersions }] of Object.entries(dependencyUpdates)) {
+      template += `- ${dependency} (${versions.join(', ')}) on ${affectedVersions.join(', ')}\n`;
     }
     return template;
   }