fixed pyservectl linter errors and formatting

pyserve/ctl/commands/health.py

@@ -5,6 +5,8 @@ pyserve health - Check health of services
 import asyncio
 from pathlib import Path
 
+from typing import Any
+
 import click
 
 
@@ -25,7 +27,7 @@ import click
     help="Output format",
 )
 @click.pass_obj
-def health_cmd(ctx, services: tuple, timeout: int, output_format: str):
+def health_cmd(ctx: Any, services: tuple[str, ...], timeout: int, output_format: str) -> None:
     """
     Check health of services.