RequestsExecutor now is Closeable

src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/bot/Ktor/KtorRequestsExecutor.kt

@@ -83,4 +83,8 @@ class KtorRequestsExecutor(
             }
         }
     }
+
+    override fun close() {
+        client.close()
+    }
 }

src/main/kotlin/com/github/insanusmokrassar/TelegramBotAPI/bot/RequestsExecutor.kt

@@ -2,8 +2,9 @@ package com.github.insanusmokrassar.TelegramBotAPI.bot
 
 import com.github.insanusmokrassar.TelegramBotAPI.bot.exceptions.RequestException
 import com.github.insanusmokrassar.TelegramBotAPI.requests.abstracts.Request
+import kotlinx.io.core.Closeable
 
-interface RequestsExecutor {
+interface RequestsExecutor : Closeable {
     @Throws(RequestException::class)
     suspend fun <T : Any> execute(request: Request<T>): T
 }