修正限流机制，将信号量从 1 更改为 5，优化任务处理逻辑以支持并发执行

sync.py

@@ -1,4 +1,6 @@
 import asyncio
+from types import CoroutineType
+from typing import Any, Awaitable, Callable, Coroutine
 import aiofiles
 import yaml
 from pydantic import BaseModel
@@ -39,11 +41,12 @@ async def docker_push(image: str) -> int | None:
     print(f"Pushing image {image}...")
     return await run_command(f"docker push {image}")
 
-semaphore = asyncio.Semaphore(1)
+semaphore = asyncio.Semaphore(5)
 
-async def limited_task(task):
+async def limited_task[T: Any](task: Callable[[], Coroutine[None, None, T]]) -> T:
     async with semaphore:
-        return await task
+        return await task()
+
 
 async def main():
     async with aiofiles.open('images.yaml', 'r') as file:
@@ -59,19 +62,20 @@ async def main():
     for image in config.images:
         if len(image.tags) > 0:
             for tag in image.tags:
-                async def task():
-                    await docker_pull(f"{image.source}:{tag}")
-                    await docker_tag(f"{image.source}:{tag}", f"{image.target}:{tag}")
-                    await docker_push(f"{image.target}:{tag}")
-                tasks.append(limited_task(task()))
+                async def task() -> int | None:
+                    return (await docker_pull(f"{image.source}:{tag}")) \
+                        or (await docker_pull(f"{image.source}:{tag}")) \
+                        or (await docker_push(f"{image.target}:{tag}"))
+                tasks.append(limited_task(task))
         else:
-            async def task():
-                await docker_pull(image.source)
-                await docker_tag(image.source, image.target)
-                await docker_push(image.target)
-            tasks.append(limited_task(task()))
+            async def task() -> int | None:
+                return (await docker_pull(image.source)) \
+                or (await docker_pull(image.source)) \
+                or (await docker_push(image.target))
+            tasks.append(limited_task(task))
     
     results = await asyncio.gather(*tasks)
+    print(tasks)
     failed_tasks = 0
     for result in results:
         if result is not None and result != 0: