fix: try to fetch gh pages branch

Signed-off-by: Mateusz Urbanek <[email protected]>

hack/publish.py

@@ -76,7 +76,7 @@ def is_initial() -> bool:
     Returns:
         bool: True if the repository state is initial, False otherwise.
     """
-    subprocess.run(["git", "fetch"])
+    subprocess.run(["git", "fetch", "origin", "gh-pages"])
 
     rc = subprocess.run(
         ["git", "show-ref", "--quiet", "refs/heads/gh-pages"],