update changelog

Author: rickeylev

CHANGELOG.md

@@ -64,6 +64,9 @@ END_UNRELEASED_TEMPLATE
 * (pypi) Fixes an issue where builds using a `bazel vendor` vendor directory
   would fail if the constraints file contained environment markers. Fixes
   [#2996](https://github.com/bazel-contrib/rules_python/issues/2996).
+* (pypi) Wheels with BUILD.bazel (or other special Bazel files) no longer
+  result in missing files at runtime
+  ([#2782](https://github.com/bazel-contrib/rules_python/issues/2782)).
 
 {#v0-0-0-added}
 ### Added