Updated list of GUCs from TimescaleDB 2.26.2

[timescale-automation]

Automated changes by create-pull-request GitHub action

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ surister
❌ timescale-automation
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[github-actions]

Allow 10 minutes from last push for the staging site to build. If the link doesn't work, try using incognito mode instead. For internal reviewers, check web-documentation repo actions for staging build status. Link to build for this PR: http://docs-dev.timescale.com/docs-create-pull-request-patch