The pattern tries to deduce static shape from tensor.cast producer of linalg operation operands.
The original code unconditionally casts type of the tensor.cast source to RankedTensorType.
But the tensor.cast can also operate on UnrankedTensorType, so this cast either fail on assertion
in debug build or introduce UB in release build.
The patch replaces unconditional cast with dyn_cast and check for the cast result.