minor: ruff format

Tabs -> spaces

src/api.py

@@ -26,15 +26,15 @@ api_router.include_router(iam_router)
 
 
 class HealthCheckResponse(CustomBaseModel):
-	status: str
+    status: str
 
 
 @api_router.get(
-	path="/healthcheck",
-	status_code=status.HTTP_200_OK,
-	response_model=HealthCheckResponse,
-	include_in_schema=False,
+    path="/healthcheck",
+    status_code=status.HTTP_200_OK,
+    response_model=HealthCheckResponse,
+    include_in_schema=False,
 )
 def healthcheck():
-	"""Simple health check endpoint."""
-	return {"status": "ok"}
+    """Simple health check endpoint."""
+    return {"status": "ok"}