Splits groebner.jl into parts (#4250) #610

Job	Run time
doctest (1.10, ubuntu-latest)	26m 21s
doctest (1.11-nightly, ubuntu-latest)	26m 20s
test (1.6, short, ubuntu-latest)	1h 31m 4s
doctest (nightly, ubuntu-latest)	32m 42s
test (1.6, long, ubuntu-latest)	57m 19s
doctest (1.10, ubuntu-latest, depwarn=error)	26m 3s
test (1.10, short, ubuntu-latest)	1h 10m 16s
doctest (1.10, macOS, RPTU)	1s
test (1.10, long, ubuntu-latest)	47m 40s
test (1.11-nightly, short, ubuntu-latest)	1h 22m 38s
test (1.11-nightly, long, ubuntu-latest)	52m 18s
test (nightly, short, ubuntu-latest)	54m 46s
test (nightly, long, ubuntu-latest)	1h 2m 17s
test (1.10, short, ubuntu-latest, depwarn=error)	1h 10m 32s
test (1.10, long, ubuntu-latest, depwarn=error)	46m 33s
test (1.10, short, macOS, RPTU)	1s
test (1.10, long, macOS, RPTU)	1s
test (1.10, book, ubuntu-latest)	50m 18s
test (nightly, book, ubuntu-latest)	1h 9m 5s
	14h 26m 15s

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