chore(testing): Flock lock for playwright tests; Pin node version for OHIF; add more workers (#6099)

* update Cypress apt deps for Ubuntu Noble (drop libgconf-2-4, libasound2→libasound2t64)

playwright.config.ts

@@ -7,7 +7,7 @@ export default defineConfig({
   forbidOnly: !!process.env.CI,
   retries: process.env.CI ? 1 : 0,
   maxFailures: process.env.CI ? 10 : undefined,
-  workers: process.env.CI ? 8 : undefined,
+  workers: process.env.CI ? 18 : undefined,
   snapshotPathTemplate: './tests/screenshots{/projectName}/{testFilePath}/{arg}{ext}',
   outputDir: './tests/test-results',
   reporter: [['html', { outputFolder: './tests/playwright-report' }]],