chore: upgrade to Playwright 1.12 with its new test-runner

test/playwright.config.ts

@@ -0,0 +1,43 @@
+import { PlaywrightTestConfig } from "@playwright/test"
+
+import path from "path"
+
+// Run tests in three browsers.
+const config: PlaywrightTestConfig = {
+  testDir: path.join(__dirname, "e2e"), // Search for tests in this directory.
+  timeout: 60000, // Each test is given 60 seconds.
+  retries: 3, // Retry failing tests 2 times
+  workers: 1,
+  globalSetup: require.resolve("./utils/globalSetup.ts"),
+  reporter: "list",
+  // Put any shared options on the top level.
+  use: {
+    headless: true, // Run tests in headless browsers.
+    video: "on",
+  },
+
+  projects: [
+    {
+      name: "Chromium",
+      use: { browserName: "chromium" },
+    },
+
+    {
+      name: "Firefox",
+      use: { browserName: "firefox" },
+    },
+
+    {
+      name: "WebKit",
+      use: { browserName: "webkit" },
+    },
+  ],
+}
+
+if (process.env.CI) {
+  // In CI, retry failing tests 2 times
+  // in the event of flakiness
+  config.retries = 2
+}
+
+export default config