fix(testing): check for project eslint config file in cypress and pla… (#23401)

…ywright configuration generators

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## Current Behavior
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Fixes #21301

(cherry picked from commit 9af7386)

Author: leosvelperez

packages/cypress/src/utils/add-linter.ts

@@ -85,7 +85,10 @@ export async function addLinterToCyProject(
       : () => {}
   );
 
-  if (isEslintConfigSupported(tree)) {
+  if (
+    isEslintConfigSupported(tree, projectConfig.root) ||
+    isEslintConfigSupported(tree)
+  ) {
     const overrides = [];
     if (options.rootProject) {
       addPluginsToLintConfig(tree, projectConfig.root, '@nx');

packages/playwright/src/utils/add-linter.ts

@@ -72,7 +72,10 @@ export async function addLinterToPlaywrightProject(
       : () => {}
   );
 
-  if (isEslintConfigSupported(tree)) {
+  if (
+    isEslintConfigSupported(tree, projectConfig.root) ||
+    isEslintConfigSupported(tree)
+  ) {
     addExtendsToLintConfig(
       tree,
       projectConfig.root,