chore: repleace version marker in features.bzl

(cherry picked from commit 3ddb6015b7cc575665c78c23d3d75c373aeb89a5)

python/features.bzl

diff --git a/python/features.bzl b/python/features.bzl
index 5e3b741..26acc8c 100644
--- a/python/features.bzl
+++ b/python/features.bzl
@@ -26,7 +26,7 @@
     A map of public API targets available in rules_python for feature detection
     purposes.
 
-    :::{versionadded} VERSION_NEXT_FEATURE
+    :::{versionadded} 1.9.0
     :::
     ::::