Merge pull request freqtrade#12091 from freqtrade/deps/ccxt

Bump ccxt to 4.4.99

Author: xmatthias

requirements.txt

@@ -7,7 +7,7 @@ ft-pandas-ta==0.3.15
 ta-lib==0.5.5
 technical==1.5.2
 
-ccxt==4.4.98
+ccxt==4.4.99
 cryptography==45.0.5
 aiohttp==3.12.15
 SQLAlchemy==2.0.42