updated stub files

Author: kylejcaron

src/arviz_base/io_numpyro.pyi

@@ -99,7 +99,7 @@ def from_numpyro_svi(
     svi_result: numpyro.infer.svi.SVIRunResult,
     model_args: tuple | None = ...,
     model_kwargs: dict | None = ...,
-    prior=...,
+    prior: dict | None = ...,
     posterior_predictive: dict | None = ...,
     predictions: dict | None = ...,
     constant_data: dict | None = ...,