Update configuration files (#708)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.eslintrc.js

@@ -1,3 +1,4 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
 module.exports = {
   extends: [
     'eslint:recommended',

.prettierrc.js

@@ -1,3 +1,4 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
 module.exports = {
   printWidth: 80,
   tabWidth: 2,