tools: enable default-case-last lint rule

PR-URL: #31400
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Trivikram Kamat <[email protected]>
Reviewed-By: Rich Trott <[email protected]>

Author: cjihrig

.eslintrc.js

@@ -85,6 +85,7 @@ module.exports = {
     'comma-style': 'error',
     'computed-property-spacing': 'error',
     'constructor-super': 'error',
+    'default-case-last': 'error',
     'dot-location': ['error', 'property'],
     'dot-notation': 'error',
     'eol-last': 'error',