[#1619] logger: Add benchmark

```
goos: linux
goarch: amd64
pkg: git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger
cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
   10000	       528.6 ns/op	      23 B/op	       0 allocs/op
   10000	       523.3 ns/op	      23 B/op	       0 allocs/op
   10000	       516.5 ns/op	      22 B/op	       0 allocs/op
   10000	       513.6 ns/op	      23 B/op	       0 allocs/op
   10000	       521.5 ns/op	      22 B/op	       0 allocs/op
   10000	       541.7 ns/op	      23 B/op	       0 allocs/op
   10000	       610.8 ns/op	      22 B/op	       0 allocs/op
   10000	       531.5 ns/op	      23 B/op	       0 allocs/op
   10000	       520.4 ns/op	      23 B/op	       0 allocs/op
   10000	       525.3 ns/op	      22 B/op	       0 allocs/op
PASS
ok  	git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger	0.065s
```

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/util/logger/logger_test.go

@@ -0,0 +1,28 @@
+package logger
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Benchmark_loggerLog(b *testing.B) {
+	ctx := context.Background()
+
+	prm := Prm{}
+	require.NoError(b, prm.SetLevelString("debug"))
+
+	logger, err := NewLogger(prm)
+	require.NoError(b, err)
+
+	b.ResetTimer()
+	b.ReportAllocs()
+
+	for range b.N {
+		logger.Debug(ctx, "test debug")
+		logger.Info(ctx, "test info")
+		logger.Warn(ctx, "test warn")
+		logger.Error(ctx, "test error")
+	}
+}