Add docs for 1.19.1

[stockholmux]

Path to page with content (do not include domain name):

/en/os/1.19.x/

What content is incorrect?

Bottlerocket 1.19.1 was released on Feb 7. Update the relevant information for this release.

What should the content say or communicate?

According to the tracking issue there are no new features in this patch release. Meaning only version metadata and the data objects that power the following pages will need to be updated:

• /en/os/1.19.x/version-information/packages/
• /en/os/1.19.x/version-information/gpu-drivers/1.19.0/