Update dependency rules_pkg to v0.9.1

Author: renovate[bot]

internal_deps.bzl

@@ -22,10 +22,10 @@ def rules_helm_internal_deps():
         http_archive,
         name = "rules_pkg",
         urls = [
-            "https://mirror.bazel.build/github.com/bazelbuild/rules_pkg/releases/download/0.7.1/rules_pkg-0.7.1.tar.gz",
-            "https://github.com/bazelbuild/rules_pkg/releases/download/0.7.1/rules_pkg-0.7.1.tar.gz",
+            "https://mirror.bazel.build/github.com/bazelbuild/rules_pkg/releases/download/0.9.1/rules_pkg-0.9.1.tar.gz",
+            "https://github.com/bazelbuild/rules_pkg/releases/download/0.9.1/rules_pkg-0.9.1.tar.gz",
         ],
-        sha256 = "451e08a4d78988c06fa3f9306ec813b836b1d076d0f055595444ba4ff22b867f",
+        sha256 = "8f9ee2dc10c1ae514ee599a8b42ed99fa262b757058f65ad3c384289ff70c4b8",
     )
 
     maybe(