InsecureRequest errors for magpic and image_cutouts.first

[bsipocz]

cc @keflavich

Could you have a look at this, and whether we can do anything about the URL for these two modules? You can reproduce by running the remote tests for them (I've included one as an example below).

urllib3.exceptions.InsecureRequestWarning: Unverified HTTPS request is being made to host 'third.ucllnl.org'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings

________________________________________________________________________ TestFirst.test_get_images_async ________________________________________________________________________

self = <astroquery.image_cutouts.first.tests.test_first_remote.TestFirst object at 0x152fc9970>

    def test_get_images_async(self):
>       response = first.core.First.get_images_async(
            SkyCoord(162.530, 30.677, unit=(u.deg, u.deg), frame='icrs'),
            image_size='1 arcmin')

astroquery/image_cutouts/first/tests/test_first_remote.py:14: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
astroquery/image_cutouts/first/core.py:90: in get_images_async
    response = self._request("POST", url=self.URL, data=request_payload,
astroquery/query.py:317: in _request
    response = query.request(self._session,
astroquery/query.py:71: in request
    return session.request(self.method, self.url, params=self.params,
/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/requests/sessions.py:542: in request
    resp = self.send(prep, **send_kwargs)
/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/requests/sessions.py:655: in send
    r = adapter.send(request, **kwargs)
/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/requests/adapters.py:439: in send
    resp = conn.urlopen(
/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/urllib3/connectionpool.py:699: in urlopen
    httplib_response = self._make_request(
/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/urllib3/connectionpool.py:382: in _make_request
    self._validate_conn(conn)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <urllib3.connectionpool.HTTPSConnectionPool object at 0x152fc9be0>, conn = <urllib3.connection.HTTPSConnection object at 0x14d049c40>

    def _validate_conn(self, conn):
        """
        Called right before a request is made, after the socket is created.
        """
        super(HTTPSConnectionPool, self)._validate_conn(conn)
    
        # Force connect early to allow us to validate the connection.
        if not getattr(conn, "sock", None):  # AppEngine might not have  `.sock`
            conn.connect()
    
        if not conn.is_verified:
>           warnings.warn(
                (
                    "Unverified HTTPS request is being made to host '%s'. "
                    "Adding certificate verification is strongly advised. See: "
                    "https://urllib3.readthedocs.io/en/latest/advanced-usage.html"
                    "#ssl-warnings" % conn.host
                ),
                InsecureRequestWarning,
            )
E           urllib3.exceptions.InsecureRequestWarning: Unverified HTTPS request is being made to host 'third.ucllnl.org'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings

/Users/bsipocz/.pyenv/versions/3.9.1/lib/python3.9/site-packages/urllib3/connectionpool.py:1013: InsecureRequestWarning
___________________________________________________________________________ TestFirst.test_get_images ___________________________________________________________________________