Docs for 1.26.0

[piyush-jena]

Issue number:

Closes # n/a

Description of changes:

• Increments metadata for 1.26.0
• Adds GPU variant info
• Adds packages/versions info

Note: with the exception of

• incrementing the patch version in current.toml
• manual removal of "(Current)" from content/en/os/1.26.x/_index.markdown
• manual updation of 1st and 3rd line of content/en/os/1.26.x/version-information/packages/1.26.0/index.markdown

this is all generated from bottlerocket sources.

Terms of contribution:

By submitting this pull request, I confirm that my contribution is made under the terms of the licenses outlined in the LICENSE-SUMMARY file.