Bump gitpython from 3.1.54 to 3.1.55

Author: Copilot

requirements.txt

@@ -2,7 +2,7 @@ black==26.3.1
 build==1.2.2.post1
 coverage==7.6.12
 docopt==0.6.2
-gitpython==3.1.54
+gitpython==3.1.55
 packaging==24.2
 pathspec==1.0.4
 polib==1.2.0