semeru-jdk-open: use url :url instead of url :stable for livecheck

Casks/s/semeru-jdk-open.rb

@@ -12,7 +12,7 @@ cask "semeru-jdk-open" do
   homepage "https://developer.ibm.com/languages/java/semeru-runtimes"
 
   livecheck do
-    url :stable
+    url :url
     regex(/^jdk[._-](\d+(?:[.+]\d+)*)[._-](.+?)$/i)
     strategy :github_latest do |json, regex|
       json["tag_name"]&.scan(regex)&.map { |match| "#{match[0]},#{match[1]}" }