pvvalue fix simulation_impl

Author: LilithCole

src/genie_python/genie_simulate_impl.py

@@ -1196,7 +1196,7 @@ def get_block_data(self, block: str, fail_fast: bool = False) -> dict():
     def get_pv_from_block(self, block_name: str) -> str:
         return block_name
 
-    def set_multiple_blocks(self, names: list[str], values: list[PVValue]) -> None:
+    def set_multiple_blocks(self, names: list[str], values: list["PVValue"]) -> None:
         temp = list(zip(names, values))
         for name, value in temp:
             if name in self.block_dict: