ci: fix mypy

Author: abc8747

src/_griffe/expressions.py

@@ -1035,8 +1035,8 @@ def iterate(self, *, flat: bool = True) -> Iterator[str | Expr]:
         "&": _OperatorPrecedence.BIT_AND,
         "^": _OperatorPrecedence.BIT_XOR,
         "|": _OperatorPrecedence.BIT_OR,
-    }.get(e.operator),
-    ExprBoolOp: lambda e: {"and": _OperatorPrecedence.AND, "or": _OperatorPrecedence.OR}.get(e.operator),
+    }[e.operator],
+    ExprBoolOp: lambda e: {"and": _OperatorPrecedence.AND, "or": _OperatorPrecedence.OR}[e.operator],
     ExprCompare: lambda _: _OperatorPrecedence.COMP_MEMB_ID,
     ExprIfExp: lambda _: _OperatorPrecedence.IF_ELSE,
     ExprNamedExpr: lambda _: _OperatorPrecedence.ASSIGN,