WIP Use windows branch on windows CI

kiwixbuild/dependencies/libzim.py

@@ -10,6 +10,13 @@ class Libzim(Dependency):
         git_remote = "https://github.com/openzim/libzim.git"
         git_dir = "libzim"
 
+        @property
+        def git_ref(self):
+            if neutralEnv("distname") == "Windows":
+                return "libzim_github_ci_windows"
+            else:
+                return "main"
+
     class Builder(MesonBuilder):
         test_options = ["-t", "8"]
         strip_options = []