Release `rules_java` `v8.3.2`

 - Update skylib dep for WORKSPACE
 - Lower the minimim Bazel compatibility version to `6.3.0`

PiperOrigin-RevId: 695281310
Change-Id: Ib131bfe0b651e1da707a040bd66f981f6416f4be

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 7f4e857..cbe4e80 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -4,10 +4,10 @@
 
 http_archive(
     name = "bazel_skylib",
-    sha256 = "9f38886a40548c6e96c106b752f242130ee11aaa068a56ba7e56f4511f33e4f2",
+    sha256 = "bc283cdfcd526a52c3201279cda4bc298652efa898b10b4db0837dc51652756f",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.6.1/bazel-skylib-1.6.1.tar.gz",
-        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.6.1/bazel-skylib-1.6.1.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
+        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.7.1/bazel-skylib-1.7.1.tar.gz",
     ],
 )