python313: 3.13.12 -> 3.13.13

https://docs.python.org/release/3.13.13/whatsnew/changelog.html

Fixes: CVE-2026-4224, CVE-2026-3644, CVE-2026-2297

Author: mweinelt

pkgs/development/interpreters/python/default.nix

@@ -20,10 +20,10 @@
         sourceVersion = {
           major = "3";
           minor = "13";
-          patch = "12";
+          patch = "13";
           suffix = "";
         };
-        hash = "sha256-KoTNMd2Njqiq/3XeZvwbSwEn3VeZqlCmSumjE4hbRZM=";
+        hash = "sha256-Krkf9AF4PMymT3XRDIgulXvf1g4r9acvhCF5Nym3inE=";
       };
     };