Pull request 2195: upd-go-code

Squashed commit of the following:

commit a1bd3c249be043108c84a902d2e88bf80946d444
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Apr 4 14:59:37 2024 +0300

    all: upd more

commit 9e55bbb02c2af2064aa2a2ca7b49fd28b544a02c
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Apr 4 14:12:45 2024 +0300

    all: upd go code

internal/aghalg/sortedmap_test.go

@@ -11,7 +11,7 @@ func TestNewSortedMap(t *testing.T) {
 	var m SortedMap[string, int]
 
 	letters := []string{}
-	for i := 0; i < 10; i++ {
+	for i := range 10 {
 		r := string('a' + rune(i))
 		letters = append(letters, r)
 	}