Update Python versions to latest security releases

Updated tracked Python versions to include security-only releases:

- Python 3.12.13
- Python 3.11.15
- Python 3.10.20

These releases address several vulnerabilities:
- CVE-2024-6923: Header injection in email module
- CVE-2026-24515, CVE-2026-25210, CVE-2025-59375: XML memory amplification and libexpat vulnerabilities
- DoS hardening in plistlib, http.client, and os.path.expandvars()
- Memory safety fixes (use-after-free) in list and ssl modules

Author: dwoz

relenv/python-versions.json

@@ -185,7 +185,10 @@
   "3.13.10": "15a47abaf928dbbe73f932ef3ba78070cdfe699d",
   "3.13.9": "53a9cd799370adad6fe471a2ee45874bbf6ccfc1",
   "3.9.25": "36c7257ec30dca042679626d0dff79715acd4efb",
-  "3.13.12": "7c5b0241cb7d33d4eab78c9fd44967b08220dfe7"
+  "3.13.12": "7c5b0241cb7d33d4eab78c9fd44967b08220dfe7",
+  "3.12.13": "ad3e9c333d91bee73f1d5f4a6fe6e88f2e74d911",
+  "3.11.15": "e434ba0457a632f86e73239174bb1737cb57c09c",
+  "3.10.20": "33b99a3309d5a0323b71a4764543f61ff1fcf8f3"
  },
  "dependencies": {
   "perl": {