Update dependency rules_jvm_external to v6

Author: renovate[bot]

WORKSPACE

@@ -49,9 +49,9 @@ http_archive(
 
 http_archive(
     name = "rules_jvm_external",
-    sha256 = "d31e369b854322ca5098ea12c69d7175ded971435e55c18dd9dd5f29cc5249ac",
-    strip_prefix = "rules_jvm_external-5.3",
-    url = "https://github.com/bazelbuild/rules_jvm_external/releases/download/5.3/rules_jvm_external-5.3.tar.gz",
+    sha256 = "339aac4781df00974392890e1d66b580fc04d5fb356ed755c6de05940b3a8380",
+    strip_prefix = "rules_jvm_external-6.0",
+    url = "https://github.com/bazelbuild/rules_jvm_external/releases/download/6.0/rules_jvm_external-6.0.tar.gz",
 )
 
 http_archive(