fix bot config: add required job_result_unknown_fmt + use 16 cores for jobs

[boegel]

Without this, the job manager crashes - required because of changes in EESSI/eessi-bot-software-layer#174

[eessi-bot]

Instance eessi-bot-citc-aws is configured to build:

• arch x86_64/generic for repo eessi-2021.12
• arch x86_64/generic for repo eessi-2023.06-compat
• arch x86_64/generic for repo eessi-2023.06-software
• arch x86_64/intel/haswell for repo eessi-2021.12
• arch x86_64/intel/haswell for repo eessi-2023.06-compat
• arch x86_64/intel/haswell for repo eessi-2023.06-software
• arch x86_64/intel/skylake_avx512 for repo eessi-2021.12
• arch x86_64/intel/skylake_avx512 for repo eessi-2023.06-compat
• arch x86_64/intel/skylake_avx512 for repo eessi-2023.06-software
• arch x86_64/amd/zen2 for repo eessi-2021.12
• arch x86_64/amd/zen2 for repo eessi-2023.06-compat
• arch x86_64/amd/zen2 for repo eessi-2023.06-software
• arch x86_64/amd/zen3 for repo eessi-2021.12
• arch x86_64/amd/zen3 for repo eessi-2023.06-compat
• arch x86_64/amd/zen3 for repo eessi-2023.06-software
• arch aarch64/generic for repo eessi-2021.12
• arch aarch64/generic for repo eessi-2023.06-compat
• arch aarch64/generic for repo eessi-2023.06-software
• arch aarch64/neoverse_n1 for repo eessi-2021.12
• arch aarch64/neoverse_n1 for repo eessi-2023.06-compat
• arch aarch64/neoverse_n1 for repo eessi-2023.06-software
• arch aarch64/neoverse_v1 for repo eessi-2021.12
• arch aarch64/neoverse_v1 for repo eessi-2023.06-compat
• arch aarch64/neoverse_v1 for repo eessi-2023.06-software

[trz42]

Looks good. Maybe you want to add more instances or someone wonders why a job is not starting. There are fewer nodes for the larger instances configured.

If we want to support multiple jobs per node, we probably need to add --mem= and also make local_tmp = /tmp/$USER/EESSI job-specific. The latter could be achieved by adding /$SLURM_JOB_ID.

[boegel]

We can easily scale up extra *.4xlarge nodes on the fly in the CitC cluster. I'll make sure there's 2 of each *.4xlarge type