👽️ fix new 1.15.3 stubtest errors

Author: jorenham

scipy-stubs/sparse/linalg/_eigen/arpack/arpack.pyi

@@ -21,7 +21,7 @@ _Mode: TypeAlias = Literal["normal", "buckling", "cayley"]
 ###
 
 class ArpackError(RuntimeError):
-    def __init__(self, /, info: _KT, infodict: Mapping[_KT, str] = ...) -> None: ...
+    def __init__(self, /, info: _KT, infodict: Mapping[_KT, str] | None = None) -> None: ...
 
 class ArpackNoConvergence(ArpackError):
     eigenvalues: Final[onp.Array1D[np.float64 | np.complex128]]

scipy-stubs/sparse/linalg/_interface.pyi

@@ -275,7 +275,7 @@ class _AdjointMatrixOperator(MatrixLinearOperator[_SCT_co], Generic[_SCT_co]):
     @property
     @override
     def dtype(self, /) -> np.dtype[_SCT_co]: ...  # pyright: ignore[reportIncompatibleVariableOverride]
-    def __init__(self, /, adjoint: LinearOperator) -> None: ...
+    def __init__(self, /, adjoint_array: LinearOperator) -> None: ...
 
 class IdentityOperator(LinearOperator[_SCT_co], Generic[_SCT_co]):
     @overload