Fix httpx usage

Follow redirects when downloading from GitHub via httpx.
Fixes issue #686 [1].

[1]: #686

Reported-by: Antonio Petricca <[email protected]>

Author: claui

spleeter/model/provider/github.py

@@ -114,7 +114,7 @@ def checksum(self, name: str) -> str:
                 self.CHECKSUM_INDEX,
             )
         )
-        response: httpx.Response = httpx.get(url)
+        response: httpx.Response = httpx.get(url, follow_redirects=True)
         response.raise_for_status()
         index: Dict = response.json()
         if name not in index:
@@ -137,7 +137,7 @@ def download(self, name: str, path: str) -> None:
         url = f"{url}.tar.gz"
         logger.info(f"Downloading model archive {url}")
         with httpx.Client(http2=True) as client:
-            with client.stream("GET", url) as response:
+            with client.stream("GET", url, follow_redirects=True) as response:
                 response.raise_for_status()
                 archive = NamedTemporaryFile(delete=False)
                 try: