Release v0.51.x documentation

[codebien]

What?

Checklist

• I have used a meaningful title for the PR.
• I have described the changes I've made in the "What?" section above.
• I have performed a self-review of my changes.
• I have run the npm start command locally and verified that the changes look good.

• I have made my changes in the docs/sources/next folder of the documentation.
• I have reflected my changes in the docs/sources/v{most_recent_release} folder of the documentation.
• I have reflected my changes in the relevant folders of the two previous k6 versions of the documentation (if still applicable to previous versions).

• I have made my changes in the docs/sources/next folder of the documentation.

Related PR(s)/Issue(s)

[codebien]

Hey @heitortsergent, apparently the next folder has a bunch of errors.

cd grafana/k6-docs
cp -r ./docs/sources/next ./docs/sources/v0.51.x
git add .
git commit -m "bla bla commit message"

It returns errors and makes the commit command fail. To force the commit I had to add a condition into eslintignore file to exclude entirely the new v0.51.x folder.

Is it a known issue? What is the plan?

[inancgumus]

@codebien We've improved the Tap docs with an additional PR: #1581. FYI. Let me know if I need to do something about it.

[codebien]

FYI, I intend to force the CI to merge. @heitortsergent and the docs team will work on the CI fixes during the next cycle.