Fix Javadoc link for text API

api/build.gradle

@@ -63,7 +63,7 @@ javadoc {
             'http://www.slf4j.org/apidocs/',
             'https://google.github.io/guava/releases/25.1-jre/api/docs/',
             'https://google.github.io/guice/api-docs/4.2/javadoc/',
-            'https://jd.kyori.net/text/1.12-1.6.4/',
+            'https://jd.kyori.net/text-api/3.0.0/',
             'https://docs.oracle.com/javase/8/docs/api/'
     )