package/go: security bump to version 1.20.8
go1.20.8 (released 2023-09-06) includes two security fixes to the html/template
package, as well as bug fixes to the compiler, the go command, the runtime, and
the crypto/tls, go/types, net/http, and path/filepath packages.
CVE-2023-39318: html/template: improper handling of HTML-like comments within script contexts
CVE-2023-39319: html/template: improper handling of special tags within script contexts
CVE-2023-39321: crypto/tls: panic when processing post-handshake message on QUIC connections
https://go.dev/doc/devel/release#go1.20.0
Signed-off-by: Christian Stewart <christian@aperture.us>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>