Demos: test color-contrast rule

Author: EugeniyKiyashko

apps/demos/testing/common.test.ts

@@ -164,7 +164,7 @@ Object.values(FRAMEWORKS).forEach((approach) => {
           const options = { rules: {} };
 
           [...COMMON_SKIP_RULES, ...specificSkipRules].forEach((ruleName) => {
-            options.rules[ruleName] = { enabled: false };
+            options.rules[ruleName] = { enabled: true };
           });
 
           const axeResult = await axeCheck(t, '.demo-container', options);