Increase test timeout and add retries for CI resilience

The NGSIEM Cases navigation can take 30-40s due to sidebar re-renders,
which exceeded the default 45s local / 60s CI timeout. Bump to 90s and
add retries: 2 for both local and CI runs.

Author: mraible

e2e/playwright.config.ts

@@ -1,3 +1,6 @@
 import { defineFoundryConfig } from '@crowdstrike/foundry-playwright';
 
-export default defineFoundryConfig();
+export default defineFoundryConfig({
+  timeout: 90_000,
+  retries: 2,
+});