Log Message:
devel/hs-unordered-containers: Update to 0.2.20

[0.2.20] - January 2024

    Allow template-haskell-2.21
    Rename confusing variables
    Deal with introduction of Prelude.foldl'
    Remove redundant Hashable constraints from intersection.* and union.*.
    Various optimizations and cleanups: #458, #469, #404, #460, #456, #433
    Add invariant tests: #444, #455
    Improve test case generation
    Improve test failure reporting