fix: follow redirects when probing repositories (#436)

Fixes #431.

Author: leafty

components/renku_data_services/repositories/utils.py

@@ -7,7 +7,7 @@ async def probe_repository(repository_url: str) -> bool:
     """Probe a repository to check if it is publicly available."""
     async with httpx.AsyncClient() as client:
         url = f"{repository_url}/info/refs?service=git-upload-pack"
-        res = await client.get(url=url)
+        res = await client.get(url=url, follow_redirects=True)
         if res.status_code != 200:
             return False
         return bool(res.headers.get("Content-Type") == "application/x-git-upload-pack-advertisement")