STY: Apply ruff rule RUF021

RUF021 Parenthesize `a and b` expressions when chaining `and` and `or` together, to make the precedence clear

Author: DimitriPapadopoulos

niworkflows/engine/plugin.py

@@ -303,7 +303,7 @@ def _local_hash_check(self, jobid, graph):
         overwrite = self.procs[jobid].overwrite
         always_run = self.procs[jobid].interface.always_run
 
-        if cached and updated and (overwrite is False or overwrite is None and not always_run):
+        if cached and updated and (overwrite is False or (overwrite is None and not always_run)):
             try:
                 self._task_finished_cb(jobid, cached=True)
                 self._remove_node_dirs()