Fix ChromeHeadless timeout on macOS by adding --no-sandbox flags

Co-authored-by: francinelucca <40550942+francinelucca@users.noreply.github.com>

Author: Copilot

karma.config.cjs

@@ -11,7 +11,13 @@ module.exports = function(config) {
     port: 9876,
     colors: true,
     logLevel: config.LOG_INFO,
-    browsers: ['ChromeHeadless'],
+    customLaunchers: {
+      ChromeHeadlessNoSandbox: {
+        base: 'ChromeHeadless',
+        flags: ['--no-sandbox', '--disable-setuid-sandbox'],
+      },
+    },
+    browsers: ['ChromeHeadlessNoSandbox'],
     autoWatch: false,
     singleRun: true,
     concurrency: Infinity