Bump hypothesis version to 6.156.9 and update changelog

[skip ci]

Author: DRMacIver

hypothesis/RELEASE.rst

@@ -18,6 +18,17 @@ Hypothesis 6.x
 
     .. include:: ../RELEASE.rst
 
+.. _v6.156.9:
+
+--------------------
+6.156.9 - 2026-07-19
+--------------------
+
+This release improves observability output under symbolic backends by displaying
+arguments generated by :func:`~hypothesis.strategies.data` as ``data(...)``.
+
+Thanks to zhangli091011 for this fix!
+
 .. _v6.156.8:
 
 --------------------

hypothesis/docs/changelog.rst

@@ -1,6 +1,6 @@
 [package]
 name = "hypothesis-native"
-version = "6.156.8"
+version = "6.156.9"
 edition = "2021"
 rust-version = "1.91"
 publish = false