upgrade go.1.21.13

[hawkingrei]

Enhancement

Hello gophers,

We have just released Go versions 1.22.6 and 1.21.13, minor point releases.

View the release notes for more information:
https://go.dev/doc/devel/release#go1.22.6

You can download binary and source distributions from the Go website:
https://go.dev/dl/

To compile from source using a Git clone, update to the release with
git checkout go1.22.6 and build as usual.

Thanks to everyone who contributed to the releases.

Cheers,
David and Michael for the Go team