fix(deps): upgrade dependencies and adapt code, tests, and docs for new upstream versions

ts/index.ts

@@ -58,9 +58,10 @@ export class SmartBrowser {
     await page.goto(urlArg, {
       waitUntil: 'networkidle2',
     });
-    const screenshotBuffer = (await page.screenshot({
+    const screenshotResult = await page.screenshot({
       encoding: 'binary',
-    })) as Buffer;
+    });
+    const screenshotBuffer = Buffer.from(screenshotResult);
     await page.close();
     return {
       name: pageId,