Prevent grouping obsolete extensions with updatable ones

Apparently extensions can have an update available while being marked as obsolete.

src/features/extension/Extensions.utils.ts

@@ -74,7 +74,7 @@ export function groupExtensionsByLanguage(extensions: TExtension[]): GroupedExte
             return extension.lang;
         }
 
-        if (extension.hasUpdate) {
+        if (extension.hasUpdate && !extension.isObsolete) {
             return ExtensionGroupState.UPDATE_PENDING;
         }