Remove Latin-1 workaround on Bazel 6.4.0+

The fix for Latin-1 encoded files was landed in [6.4.0] after
being landed on Bazel [master].

We can conditionally use the old, unhermetic, `tar` workaround
on modern Bazel versions.

[master]: bazelbuild/bazel#18448
[6.4.0]: bazelbuild/bazel#19765

MODULE.bazel

@@ -7,7 +7,7 @@ module(
 
 # The custom repo_name is used to prevent our bazel_features polyfill for WORKSPACE builds from
 # conflicting with the real bazel_features repo.
-bazel_dep(name = "bazel_features", version = "1.1.1", repo_name = "io_bazel_rules_go_bazel_features")
+bazel_dep(name = "bazel_features", version = "1.6.0", repo_name = "io_bazel_rules_go_bazel_features")
 bazel_dep(name = "bazel_skylib", version = "1.2.0")
 bazel_dep(name = "platforms", version = "0.0.4")
 bazel_dep(name = "rules_proto", version = "4.0.0")

go/private/sdk.bzl

@@ -16,6 +16,7 @@ load("//go/private:common.bzl", "executable_path")
 load("//go/private:nogo.bzl", "go_register_nogo")
 load("//go/private/skylib/lib:versions.bzl", "versions")
 load("@bazel_tools//tools/build_defs/repo:utils.bzl", "patch", "read_user_netrc", "use_netrc")
+load("@io_bazel_rules_go_bazel_features//:features.bzl", "bazel_features")
 
 MIN_SUPPORTED_VERSION = (1, 14, 0)
 
@@ -441,7 +442,14 @@ def _remote_sdk(ctx, urls, strip_prefix, sha256):
     # in Bazel 6.0.0+ (bazelbuild/bazel#16052). The only situation where
     # .zip files are needed seems to be a macOS host using a Windows toolchain
     # for remote execution.
-    if urls[0].endswith(".tar.gz"):
+    if bazel_features.external_deps.extract_supports_unicode_filenames:
+        ctx.download_and_extract(
+            url = urls,
+            stripPrefix = strip_prefix,
+            sha256 = sha256,
+            auth = auth,
+        )
+    elif urls[0].endswith(".tar.gz"):
         if strip_prefix != "go":
             fail("strip_prefix not supported")
         ctx.download(
@@ -455,7 +463,7 @@ def _remote_sdk(ctx, urls, strip_prefix, sha256):
             fail("error extracting Go SDK:\n" + res.stdout + res.stderr)
         ctx.delete("go_sdk.tar.gz")
     elif (urls[0].endswith(".zip") and
-          host_goos != "windows" and
+          host_goos == "darwin" and
           # Development versions of Bazel have an empty version string. We assume that they are
           # more recent than the version that introduced rename_files.
           versions.is_at_least("6.0.0", versions.get() or "6.0.0")):
@@ -469,13 +477,16 @@ def _remote_sdk(ctx, urls, strip_prefix, sha256):
             },
             auth = auth,
         )
-    else:
+    elif (urls[0].endswith(".zip") and
+          host_goos != "darwin"):
         ctx.download_and_extract(
             url = urls,
             stripPrefix = strip_prefix,
             sha256 = sha256,
             auth = auth,
         )
+    else:
+        fail("No supported workaround for extracting Go SDK non-ASCII filenames. Bazel 6.4.0+ has correct support for unpacking the Go SDK. {}".format(urls[0]))
 
 def _local_sdk(ctx, path):
     for entry in ctx.path(path).readdir():