Generate correct WORKSPACE stanza for releases

The stanza now contains the correct load statement and function calls.
diff --git a/distro/BUILD b/distro/BUILD
index 0e09212..00ef6dd 100644
--- a/distro/BUILD
+++ b/distro/BUILD
@@ -27,4 +27,7 @@
     outs = ["relnotes.txt"],
     repo = "rules_java",
     version = version,
+    setup_file = "java:repositories.bzl",
+    deps_method = "rules_java_dependencies",
+    toolchains_method = "rules_java_toolchains",
 )