Pull request 1933: upd-golibs

Squashed commit of the following:

commit 081d10e6909def3a075707e75dbd0c5f63f91903
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Jul 20 14:17:01 2023 +0300

    aghnet: fix docs

commit 7433b72c0653cb33fe5ff810ae8a1346a6994f95
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Thu Jul 20 14:03:16 2023 +0300

    all: imp tests; upd golibs

internal/aghtest/interface_test.go

@@ -1,3 +1,11 @@
 package aghtest_test
 
+import (
+	"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
+	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
+)
+
 // Put interface checks that cause import cycles here.
+
+// type check
+var _ filtering.Resolver = (*aghtest.Resolver)(nil)