Issue #3122818 by douggreen, Neslee Canil Pinto, wodzik, zvse: Compatibility with Drupal 9

modules/svg_image_responsive/svg_image_responsive.info.yml

 name: SVG Image Responsive
 description: Overrides the responsive image formatter to support SVG files.
 core: 8.x
+core_version_requirement: ^8 || ^9
 type: module
 package: Media
 

svg_image.info.yml

@@ -3,6 +3,7 @@ description: Overrides the standard image formatter and widget to support SVG fi
 core: 8.x
 type: module
 package: Media
+core_version_requirement: ^8 || ^9
 
 dependencies:
   - drupal:image

svg_image.install

@@ -68,6 +68,6 @@ function svg_image_uninstall() {
       'SVG was removed from the allowed extensions list in fields: @field_list.',
       ['@field_list' => implode(', ', $changedFields)]
     );
-    drupal_set_message($message, 'warning');
+    \Drupal::messenger()->addWarning($message);
   }
 }