Update (usage of) PyROS `UncertaintySet` validation routines #9697

Job	Run time
lint/style-and-typos	1m 39s
linux/3.10/bare-env	14s
osx/3.11	10m 48s
win/3.11	10m 40s
linux/3.11	10m 36s
osx/3.13	10m 45s
linux/3.12	10m 36s
linux/3.10/slim	4m 33s
osx/3.10	10m 43s
linux/3.14	10m 42s
linux/3.13	10m 43s
linux/3.13/rtd	10m 36s
win/3.14	10m 37s
linux/3.12/cython	1m 17s
win/3.13	10m 38s
linux/3.10/pyutilib	10m 44s
linux/3.12/conda	10m 37s
osx/3.12	10m 47s
linux/pypy-3.11-v7.3.20	10m 41s
win/3.10	10m 33s
linux/3.11/mpi	9m 18s
linux/3.10	10m 30s
win/3.12	10m 44s
osx/3.14	10m 30s
linux/3.12/numpy2	5m 57s
linux/3.11/singletest	10m 22s
linux/3.13/nosolvers	10m 30s
process-coverage-${{ matrix.TARGET }}	1s
	4h 6m 21s

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