Trac #33240: Demote linter errors about importing from "all" to warnings for now

The linter test about importing from "all"
currently fails for all tickets, thus hiding
new linting issues introduced in any ticket.

Until these imports are fixed,
demote the error to a warning.

URL: https://trac.sagemath.org/33240
Reported by: gh-tobiasdiez
Ticket author(s): Tobias Diez
Reviewer(s): Frédéric Chapoton

Author: Release Manager

src/.relint.yml

@@ -49,3 +49,4 @@
     Hint: namespace package. Type import_statements("SOME_IDENTIFIER") to find a more specific import.
   pattern: 'from\s+sage[.](categories|misc|rings|combinat|graphs|interfaces|libs)[.]all\s+import'
   filePattern: '.*[.](py|pyx)$'
+  error: false # Make this a warning instead of an error for now

src/sage/rings/integer.pyx

@@ -7249,7 +7249,7 @@ def _check_global_dummy_Integer():
     """
     Return true if the global dummy Integer is ok.
 
-    TEST::
+    TESTS::
 
         sage: from sage.rings.integer import _check_global_dummy_Integer
         sage: _check_global_dummy_Integer()