feat: add async_job option

Author: ManonMarchand

CHANGES.rst

@@ -44,6 +44,13 @@ imcce
 - Changing RuntimeError to NoResultsWarning when an empty result is
   returned. [#3307]
 
+SIMBAD
+^^^^^^
+
+- add ``async_job`` option in all query methods. This executes the query in asynchronous
+  mode. It provides slower to start, but more robust queries for which the timeout can
+  be increased (with the ``timeout`` property or with the configuration file) [#3305]
+
 utils.tap
 ^^^^^^^^^
 

astroquery/simbad/__init__.py

@@ -22,8 +22,11 @@ class Conf(_config.ConfigNamespace):
         'Name of the SIMBAD mirror to use.')
 
     timeout = _config.ConfigItem(
-        60,
-        'Time limit for connecting to Simbad server.')
+        1080,
+        # this is the default value in SIMBAD's main mirror
+        # https://simbad.cds.unistra.fr/simbad/sim-tap/capabilities
+        "Time limit for the execution of asynchronous queries, "
+        "in seconds.")
 
     row_limit = _config.ConfigItem(
         # defaults to the maximum limit