Fix for DiskArrays.jl v0.4.13

[mtfishman]

DiskArrays.jl v0.4.13 defines PermutedDimsArray(::AbstractDiskArray, perm) as PermutedDiskArray, which broke some code in this package. This works around that design change.

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.17%. Comparing base (f28c13b) to head (d474330).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/SerializedArrays.jl	75.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
- Coverage   72.35%   72.17%   -0.19%     
==========================================
  Files           3        3              
  Lines         246      248       +2     
==========================================
+ Hits          178      179       +1     
- Misses         68       69       +1     

Flag	Coverage Δ
docs	0.00% <0.00%> (ø)

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