fix: use calculate_hash for job uuid to prevent different txs with the same uuid (#142)

Author: pedroferreira1

txstratum/jobs.py

@@ -59,7 +59,7 @@ def __init__(
         """
         self._tx: BaseTransaction = tx_or_block_from_bytes(data)
 
-        self.uuid: bytes = self._tx.get_funds_hash()
+        self.uuid: bytes = self._tx.calculate_hash()
         self.add_parents: bool = add_parents
         self.propagate: bool = propagate
         self.timeout: Optional[float] = timeout