Fix missing imports and tests

**What**
- Fix missing imports since my ide forgot to add the "time" package
- Update the tests to accept the handler timeout duration

Signed-off-by: Lucas Roesler <roesler.lucas@gmail.com>

gateway/handlers/logs.go

@@ -8,6 +8,7 @@ import (
 	"net/url"
 	"os"
 	"strings"
+	"time"
 )
 
 const crlf = "\r\n"