Small fix to sprint so that it works if you use GROUP rather than GRO… #3224

Job	Run time
docker / docker (fedora39)	19m 58s
conda / conda (ubuntu-20.04)	11m 16s
docker / docker (rocky8)	22m 56s
codecheck / codecheck	42m 48s
conda / conda (macos-13)	18m 56s
linux / linux (-doc-mpi-)	40m 12s
conda / conda (macos-14)	7m 39s
linux / linux (-mpi-)	52m 4s
linux / linux (-coverage-mpi-)	1h 5m 6s
mac / macports (macos-13)	18m 41s
linux / linux (-debug-)	29m 25s
mac / macsimple (macos-13)	11m 10s
mac / macports (+allmodules, macos-13)	23m 29s
linux / linux (-debug-mpi-)	42m 24s
mac / macsimple (macos-14)	6m 46s
linux / linux (-intel-)	45m 22s
linux / linux (-pycv-mpi-)	18m 19s
linux / linux (-nvhpc-mpi-)	55m 27s
	8h 51m 58s

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