Add PyLadiesCon 2025 (#280)

Author: egeakman

2025.csv

@@ -48,3 +48,4 @@ Python Brasil,2025-10-21,2025-10-27,"Sao Paulo, Brazil",BRA,São Luís Events Ce
 PyCon Sweden,2025-10-30,2025-10-31,"Stockholm, Sweden",SWE,Clarion Skanstull Hotel Stockholm,,,https://pycon.se/,,https://pycon.se/#sponsorship
 PyConFR,2025-10-30,2025-11-02,"Lyon, France",FRA,René Cassin Campus,,2025-07-20,https://www.pycon.fr/2025/en/,https://cfp.pycon.fr/pyconfr-2025/cfp,https://www.pycon.fr/2025/en/sponsors.html
 Kiwi PyCon,2025-11-21,2025-11-23,"Wellington / Te Whanganui-a-Tara, New Zealand",NZL,Shed 6,,,https://kiwipycon.nz/,,https://kiwipycon.nz/sponsors/become-a-sponsor
+PyLadiesCon,2025-12-05,2025-12-07,Online,,,,,https://2025.conference.pyladies.com/,,https://2025.conference.pyladies.com/en/sponsors/