[gcc r17-2623] Fix maintainer_utils.py for older jsonscheme [PR126162]

https://gcc.gnu.org/g:345dcca9c7235c7e0cb23abbed4f83f6dd248dad

commit r17-2623-g345dcca9c7235c7e0cb23abbed4f83f6dd248dad
Author: Andrea Pinski <[email protected]>
Date:   Tue Jul 21 11:25:34 2026 -0700

    Fix maintainer_utils.py for older jsonscheme [PR126162]
    
    Some semi-older distros don't have a new enough jsonscheme
    installed. So this moves the scheme to the older json scheme
    rather than using the 2020 one.
    
            PR testsuite/126162
    contrib/ChangeLog:
    
            * maintainer_utils.py: Move to the older scheme which
            is valid for MAINTAINERS.yml.
    
    Signed-off-by: Andrea Pinski <[email protected]>
    Co-authored-by: Arsen Arsenović <[email protected]>

Diff:
---
 contrib/maintainer_utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/contrib/maintainer_utils.py b/contrib/maintainer_utils.py
index c4d6c8da073f..9fc636d8b562 100755
--- a/contrib/maintainer_utils.py
+++ b/contrib/maintainer_utils.py
@@ -37,7 +37,7 @@ except:
 label_pattern = '[a-zA-Z][-+a-zA-Z0-9]*(/[a-zA-Z][-+a-zA-Z0-9]*)+'
 
 maintainer_schema = {
-    '$schema': 'https://json-schema.org/draft/2020-12/schema',
+    '$schema': 'https://json-schema.org/draft-04/schema',
     'type': 'object',
     'properties': {
         'users': {
@@ -207,7 +207,7 @@ def _format_path(path, data):
 
 def _check_schema(data):
     try:
-        schema = jsonschema.validators.Draft202012Validator(maintainer_schema)
+        schema = jsonschema.validators.Draft4Validator(maintainer_schema)
         errors = sorted(schema.iter_errors(data), key=lambda e: e.path)
         for err in errors:
             _error(f"{_format_path(err.path, data)}: {err.message}")