doker use appuser + health check

app/api.py

@@ -88,5 +88,5 @@ async def get_list_of_files(api_key: str = Depends(verify_api_key)):
     ]
 
 @app.get("/healthchecker")
-async def healthchecker(api_key: str = Depends(verify_api_key)):
-    return {"message": "Howdy :3"}
+async def healthchecker():
+    return {"message": "Howdy, all is fine :3"}