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/services/auth/jwt/validation.go

@@ -6,8 +6,9 @@ import (
 	"reflect"
 	"time"
 
-	"github.com/grafana/grafana/pkg/models"
 	"gopkg.in/square/go-jose.v2/jwt"
+
+	"github.com/grafana/grafana/pkg/models"
 )
 
 func (s *AuthService) initClaimExpectations() error {
@@ -35,8 +36,8 @@ func (s *AuthService) initClaimExpectations() error {
 			switch value := value.(type) {
 			case []interface{}:
 				for _, val := range value {
-					if val, ok := val.(string); ok {
-						s.expectRegistered.Audience = append(s.expectRegistered.Audience, val)
+					if v, ok := val.(string); ok {
+						s.expectRegistered.Audience = append(s.expectRegistered.Audience, v)
 					} else {
 						return fmt.Errorf("%q expectation contains value with invalid type %T, string expected", key, val)
 					}
@@ -73,8 +74,8 @@ func (s *AuthService) validateClaims(claims models.JWTClaims) error {
 			switch value := value.(type) {
 			case []interface{}:
 				for _, val := range value {
-					if val, ok := val.(string); ok {
-						registeredClaims.Audience = append(registeredClaims.Audience, val)
+					if v, ok := val.(string); ok {
+						registeredClaims.Audience = append(registeredClaims.Audience, v)
 					} else {
 						return fmt.Errorf("%q claim contains value with invalid type %T, string expected", key, val)
 					}