Chore: Upgrade Go to 1.19.1 (#54902)

* WIP

* Set public_suffix to a pre Ruby 2.6 version

* we don't need to install python

* Stretch->Buster

* Bump versions in lib.star

* Manually update linter

Sort of messy, but the .mod-file need to contain all dependencies that
use 1.16+ features, otherwise they're assumed to be compiled with
-lang=go1.16 and cannot access generics et al.

Bingo doesn't seem to understand that, but it's possible to manually
update things to get Bingo happy.

* undo reformatting

* Various lint improvements

* More from the linter

* goimports -w ./pkg/

* Disable gocritic

* Add/modify linter exceptions

* lint + flatten nested list

Go 1.19 doesn't support nested lists, and there wasn't an obvious workaround.
https://go.dev/doc/comment#lists

pkg/coremodel/dashboard/dashboards_test.go

@@ -62,7 +62,7 @@ func themaTestableDashboards(in fs.FS) (map[string][]byte, error) {
 		if err != nil {
 			return err
 		}
-		defer f.Close() // nolint: errcheck
+		defer f.Close() //nolint:errcheck
 
 		b, err := io.ReadAll(f)
 		if err != nil {