Pull request 1729: upd-go

Merge in DNS/adguard-home from upd-go to master

Squashed commit of the following:

commit 0e13d6863a3d463289823a27414b427cb76be88c
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 7 20:20:14 2023 +0300

    scripts: try increasing test timeout

commit 8e7d230e40de8f49a2b74a6d32a7fc78a361edab
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 7 20:00:17 2023 +0300

    all: upd quic-go; imp atomic values

commit fae2b75b6990f2bd77e5c019a35a72322bac85f7
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 7 17:36:33 2023 +0300

    all: upd go, deps; imp atomic values

internal/stats/stats_internal_test.go

@@ -47,8 +47,6 @@ func TestStats_races(t *testing.T) {
 	startTime := time.Now()
 	testutil.CleanupAndRequireSuccess(t, s.Close)
 
-	type signal = struct{}
-
 	writeFunc := func(start, fin *sync.WaitGroup, waitCh <-chan unit, i int) {
 		e := Entry{
 			Domain: fmt.Sprintf("example-%d.org", i),