Merge pull request #294790 from doronbehar/pkg/astropy

python312Packages.astropy: disable a flaky test

pkgs/development/python-modules/astropy/default.nix

···
     # May fail due to parallelism, see:
     # https://github.com/astropy/astropy/issues/15441
     "TestUnifiedOutputRegistry"
+    # More flaky tests, see: https://github.com/NixOS/nixpkgs/issues/294392
+    "test_sidereal_lon_independent"
+    "test_timedelta_full_precision_arithmetic"
   ];
 
   meta = {