Update dependency io_bazel_stardoc to v0.5.3

Author: renovate[bot]

internal_deps.bzl

@@ -46,9 +46,9 @@ def rules_helm_internal_deps():
     maybe(
         http_archive,
         name = "io_bazel_stardoc",
-        sha256 = "c9794dcc8026a30ff67cf7cf91ebe245ca294b20b071845d12c192afe243ad72",
+        sha256 = "3fd8fec4ddec3c670bd810904e2e33170bedfe12f90adf943508184be458c8bb",
         urls = [
-            "https://mirror.bazel.build/github.com/bazelbuild/stardoc/releases/download/0.5.0/stardoc-0.5.0.tar.gz",
-            "https://github.com/bazelbuild/stardoc/releases/download/0.5.0/stardoc-0.5.0.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/stardoc/releases/download/0.5.3/stardoc-0.5.3.tar.gz",
+            "https://github.com/bazelbuild/stardoc/releases/download/0.5.3/stardoc-0.5.3.tar.gz",
         ],
     )