Bump golang to 1.20.6

Ash McKenzierequested to merge
ashmckenzie/golang-1-20-6 into main

⚠ This MR needs gitlab-development-kit!3240 (merged) merged first.

This MR bumps golang to 1.20.6 which is the latest stable 1.20.x release - https://go.dev/doc/devel/release#go1.20.minor.

Edited by Ash McKenzie

Merge request reports