chore(deps): update dependency mercurial to v7.1

Author: renovate[bot]

requirements.txt

@@ -31,7 +31,7 @@ hiredis==3.2.1
 html2text==2025.4.15
 iniparse==0.5
 lxml==5.4.0
-mercurial==7.0.3
+mercurial==7.1
 mistletoe==1.4.0
 nh3==0.2.22
 openai==1.98.0