add back in the auth login url for ASF

This is the URL that you get redirected to due to a 302 response.

You can see the flow with

$ curl -v -L "https://s1qc.asf.alaska.edu/aux_poeorb/S1A_OPER_AUX_POEORB_OPOD_20231102T080652_V20231012T225942_20231014T005942.EOF"

it was added previously, but was failing in my testing during the big
switchover.

It is possible we don't need this at all if that have an earthdata
token, but i could not get that to work either. Will check with ASF
people about that.

eof/download.py

@@ -149,8 +149,12 @@ def _download_and_write(url, save_dir=".", asf_user="", asf_password=""):
         return [fname]
 
     logger.info("Downloading %s", url)
+    login_url = (
+        "https://urs.earthdata.nasa.gov/oauth/authorize?response_type=code"
+        f"&client_id=BO_n7nTIlMljdvU6kRRB3g&redirect_uri=https://auth.asf.alaska.edu/login&state={url}"
+    )
     # Add credentials
-    response = requests.get(url, auth=(asf_user, asf_password))
+    response = requests.get(login_url, auth=(asf_user, asf_password))
     response.raise_for_status()
     logger.info("Saving to %s", fname)
     with open(fname, "wb") as f: