Finalize Pyomo for release - 6.8.1 #5874

Job	Run time
lint/style-and-typos	48s
linux/3.8/bare-env	12s
linux/3.8	6m 42s
linux/3.9	6m 41s
linux/3.10	6m 42s
linux/3.11	6m 43s
linux/3.12	6m 43s
linux/3.13	6m 39s
osx/3.8	1s
osx/3.9	6m 45s
osx/3.10	6m 45s
osx/3.11	6m 44s
osx/3.12	6m 49s
osx/3.13	6m 45s
win/3.9	1s
win/3.10	2m 8s
win/3.11	1m 5s
win/3.12	1s
win/3.13	1s
linux/3.11/conda	6m 42s
linux/3.10/mpi	6m 43s
linux/3.12/cython	6m 41s
win/3.8/pip	1s
linux/3.11/singletest	6m 42s
linux/3.8/slim	4m 13s
linux/3.12/numpy2	6m 4s
linux/3.9/pyutilib	6m 41s
linux/pypy-3.9	6m 40s
process-coverage-${{ matrix.TARGET }}	1s
	2h 8m 43s

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