correct the import location (duh...)

Author: dimpase

src/sage/misc/lazy_import.pyx

@@ -1069,7 +1069,7 @@ def lazy_import(module, names, as_=None, *,
         sage: lazy_import('sage.rings.padics.factory', 'Qp', 'my_Qp', deprecation=14275)
         sage: my_Qp(5)
         doctest:...: DeprecationWarning:
-        Importing my_Qp from here is deprecated; please use "from sage.all import Qp as my_Qp" instead.
+        Importing my_Qp from here is deprecated; please use "from sage.rings.padics.factory import Qp as my_Qp" instead.
         See https://github.com/sagemath/sage/issues/14275 for details.
         5-adic Field with capped relative precision 20