Update the release date in the changelog

readme.txt

@@ -141,7 +141,7 @@ Yes, the PublishPress Future plugin allows you to schedule automatic changes to
 
 == Changelog ==
 
-= [3.1.7] - UNRELEASED =
+= [3.1.7] - 04 Jan, 2024 =
 
 * FIXED: Fix compatibility with plugins like "Hide Categories and Products for Woocommerce", making sure terms are not hidden in the taxonomy field, #639;
 * FIXED: Fix the terms select field in the settings page, expanding it on focus, #638;