docs: add HyperbrowserLoader docs (#29143)

### Description
This PR adds docs for the
[langchain-hyperbrowser](https://pypi.org/project/langchain-hyperbrowser/)
package. It includes a document loader that uses Hyperbrowser to scrape
or crawl any urls and return formatted markdown or html content as well
as relevant metadata.
[Hyperbrowser](https://hyperbrowser.ai) is a platform for running and
scaling headless browsers. It lets you launch and manage browser
sessions at scale and provides easy to use solutions for any webscraping
needs, such as scraping a single page or crawling an entire site.

### Issue
None

### Dependencies
None

### Twitter Handle
`@hyperbrowser`

libs/packages.yml

@@ -337,3 +337,7 @@ packages:
   path: .
   repo: AlwaysBluer/langchain-lindorm-integration
   downloads: 0
+- name: langchain-hyperbrowser
+  path: .
+  repo: hyperbrowserai/langchain-hyperbrowser
+  downloads: 0