chore: update repo-metadata.json client_documentation link (#710)

Author: eaball35

.repo-metadata.json

@@ -2,7 +2,7 @@
     "name": "dataproc",
     "name_pretty": "Dataproc",
     "product_documentation": "https://cloud.google.com/dataproc",
-    "client_documentation": "https://googleapis.dev/java/google-cloud-dataproc/latest/",
+    "client_documentation": "https://cloud.google.com/java/docs/reference/google-cloud-dataproc/latest/history",
     "issue_tracker": "https://issuetracker.google.com/savedsearches/559745",
     "release_level": "ga",
     "language": "java",

README.md

@@ -204,7 +204,7 @@ Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]
 Java is a registered trademark of Oracle and/or its affiliates.
 
 [product-docs]: https://cloud.google.com/dataproc
-[javadocs]: https://googleapis.dev/java/google-cloud-dataproc/latest/
+[javadocs]: https://cloud.google.com/java/docs/reference/google-cloud-dataproc/latest/history
 [kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dataproc/java7.svg
 [kokoro-badge-link-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dataproc/java7.html
 [kokoro-badge-image-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-dataproc/java8.svg