Update ava.config.js (#1582)

Author: cspotcode

ava.config.js

@@ -3,6 +3,8 @@ export default {
   failWithoutAssertions: false,
   environmentVariables: {
     ts_node_install_lock: `id-${Math.floor(Math.random() * 10e9)}`,
+    // Force jest expect() errors to generate colorized strings, makes output more readable
+    FORCE_COLOR: '3',
   },
   timeout: '300s',
 };