[CDASH] add option to set end time for ctest tests + slurm script for it

Finally found the right way to provide the stop time: without date and without timezone

My local test on cbmfles01 and vae23 with Experimental builds seem to work and stop as expected, we will probably have to wait the first runs to see how helpful the CDASH report is when the timeout is triggered.
It seems that the devs are still working on this: CMAKE issue 25146: CTest: incomplete report when stop-time is reached
But that should still be better than the current "no report at all", at least to identify areas of improvement on our test durations.

requested review from @f.uhlig

assigned to @f.uhlig

added Build System CI/CD labels

Dear @f.uhlig, @v.friese, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

added 5 commits

• d5328e82...89de6d6a - 4 commits from branch computing:master
• d533d618 - [CDASH] add option to set end time for ctest tests + slurm script for it

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changed title from [CDASH] add option to set end time for ctest tests + virgo script for it to [CDASH] add option to set end time for ctest tests + slurm script for it

@f.uhlig I added some explanations in both the cmake file and the script and renamed this last one after realizing it should work in any SLURM cluster, not just on Virgo.

I also kept the script here it as it is kinda linked to the Dart.sh file and we anyway need to have a copy of Cbmroot for this one. The Virgo specific sbatch and sh scripts I will upload to Infrastructure as discussed offline.

added 1 commit

• 64530c0a - [CDASH] add option to set end time for ctest tests + slurm script for it

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resolved all threads

enabled an automatic merge when the pipeline for 64530c0a succeeds

merged