fix: Bazel version check (#2393)

Version check needs to work on Bazel@HEAD as well and version later than
Bazel 8.

python/private/internal_config_repo.bzl

diff --git a/python/private/internal_config_repo.bzl b/python/private/internal_config_repo.bzl
index e2fa8f6..7b6869e 100644
--- a/python/private/internal_config_repo.bzl
+++ b/python/private/internal_config_repo.bzl
@@ -68,7 +68,7 @@
     else:
         enable_pystar = False
 
-    if native.bazel_version.startswith("8."):
+    if not native.bazel_version or int(native.bazel_version.split(".")[0]) >= 8:
         builtin_py_info_symbol = "None"
         builtin_py_runtime_info_symbol = "None"
         builtin_py_cc_link_params_provider = "None"