Update dependency rules_java to v8 (#5)

Co-authored-by: renovatebot-confluentinc[bot] <169726756+renovatebot-confluentinc[bot]@users.noreply.github.com>

Author: renovatebot-confluentinc[bot]

scala/private/macros/scala_repositories.bzl

@@ -104,9 +104,9 @@ def rules_scala_setup(scala_compiler_srcjar = None):
         http_archive(
             name = "rules_java",
             urls = [
-                "https://github.com/bazelbuild/rules_java/releases/download/5.4.1/rules_java-5.4.1.tar.gz",
+                "https://github.com/bazelbuild/rules_java/releases/download/8.5.1/rules_java-8.5.1.tar.gz",
             ],
-            sha256 = "a1f82b730b9c6395d3653032bd7e3a660f9d5ddb1099f427c1e1fe768f92e395",
+            sha256 = "1389206b2208c5f33a05dd96e51715b0855c480c082b7bb4889a8e07fcff536c",
         )
 
     if not native.existing_rule("rules_proto"):