Use normalizeError for CreateContainerError

[markfields]

CreateContainerError was largely the inspiration for annotateError, the idea being it takes arbitrary input and coerces it to an IErrorBase - notably containing an errorType.

During the design phase (see #6676) we realized that we only should wrap errors when there's a new abstraction we're trying to achieve, e.g. for ContainerWarnings. But that's not the case for CreateContainerError - we're really just trying to ensure it has the right shape/features for logging. annotateError will provide all this functionality as of #6750. This issue will probably be fixed in the same PR but calling it out as a specific improvement to make.

[markfields]

Update: We've decided there's no value in preserving the original shape/instance of an untrusted error, so CreateContainerError will still "wrap" untrusted errors - but it'll do it via normalizeError, which returns as-is if the error is of a known shape (IFluidErrorBase).