test: add new tests based on new basic examples + vector store tests (#2879)

* 🔧 (.github/workflows/typescript_test.yml): add BRAVE_SEARCH_API_KEY secret to workflow environment variables
✨ (frontend/src/modals/IOModal/components/chatView/chatMessage/index.tsx): add data-testid attribute to div element for testing purposes
✨ (frontend/tests/end-to-end/Hierarchical Tasks Agent.spec.ts): add end-to-end test for Hierarchical Tasks Agent
✨ (frontend/tests/end-to-end/Sequential Tasks Agent.spec.ts): add end-to-end test for Sequential Tasks Agent

* updating hierarchical task json

* 🔧 (.github/workflows/typescript_test.yml): add secrets for ASTRA_DB_APPLICATION_TOKEN and ASTRA_DB_API_ENDPOINT
♻️ (playwright.config.ts): refactor timeout value to 3 minutes
📝 (Complex Agent.spec.ts): update test to use BRAVE_SEARCH_API_KEY instead of OPENAI_API_KEY
📝 (Complex Agent.spec.ts): update test to use "apple" instead of "agile"
📝 (Hierarchical Tasks Agent.spec.ts): update test to use "langflow" instead of "agile"
📝 (Sequential Tasks Agent.spec.ts): update test to use waitForTimeout instead of isVisible

✨ (Vector Store.spec.ts): Add checks to skip tests if required environment variables are not set
🔧 (Vector Store.spec.ts): Update test logic to fill in required environment variables before running tests to ensure proper test execution

src/frontend/playwright.config.ts

@@ -23,7 +23,7 @@ export default defineConfig({
   /* Opt out of parallel tests on CI. */
   workers: 2,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
-  timeout: 120 * 1000,
+  timeout: 3 * 60 * 1000,
   // reporter: [
   //   ["html", { open: "never", outputFolder: "playwright-report/test-results" }],
   // ],