fix: add Page.getDefaultTimeout getter (#8903)

Closes #8901

docs/api/puppeteer.page.getdefaulttimeout.md

@@ -0,0 +1,19 @@
+---
+sidebar_label: Page.getDefaultTimeout
+---
+
+# Page.getDefaultTimeout() method
+
+**Signature:**
+
+```typescript
+class Page {
+  getDefaultTimeout(): number;
+}
+```
+
+**Returns:**
+
+number
+
+Maximum time in milliseconds.