promote pybind11 to runtime dependency for CPPE (to fix pip check failure)

[boegel]

(created using eb --new-pr)

[boegel]

@boegelbot please test @ jsc-zen3
EB_BRANCH=5.0.x

[boegelbot]

@boegel: Request for testing this PR well received on jsczen3l1.int.jsc-zen3.fz-juelich.de

PR test command 'if [[ "5.0.x" != 'develop' ]]; then EB_BRANCH="5.0.x" ./easybuild_develop.sh 2> /dev/null 1>&2; EB_PREFIX=/home/boegelbot/easybuild/"5.0.x" source init_env_easybuild_develop.sh; fi; EB_PR=21564 EB_ARGS= EB_CONTAINER= EB_REPO=easybuild-easyconfigs EB_BRANCH="5.0.x" /opt/software/slurm/bin/sbatch --job-name test_PR_21564 --ntasks=8 ~/boegelbot/eb_from_pr_upload_jsc-zen3.sh' executed!

• exit code: 0
• output:

Submitted batch job 5012

Test results coming soon (I hope)...

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Message to humans: this is just bookkeeping information for me,
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[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in total)
jsczen3c1.int.jsc-zen3.fz-juelich.de - Linux Rocky Linux 9.4, x86_64, AMD EPYC-Milan Processor (zen3), Python 3.9.18
See https://gist.github.com/boegelbot/3638061701bacc1a774b33dcd302ad6a for a full test report.

[boegel]

Need to check whether this could fallout, and whether pybind11 really is a runtime dependency, or if it's just faulty packaging...

[boegel]

Asked upstream to make sure: maxscheurer/cppe#47

[jfgrimm]

The build system got overhauled since the 0.3.1 release (which is from 2020). See:
maxscheurer/cppe@1d2d0be

We could probably just move to using 0.3.3a instead?

[boegel]

Requiring pybind11 as a runtime dependency is most likely a packaging mistake, but promoting it to a runtime dependency should have no real downsides (especially since we currently have pybind11 (incorrectly) as a runtime dependency of SciPy-bundle already), so I'm in favor of just merging this since it fixes a real problem that people will hit when installing these CPPE easyconfigs with EasyBuild 5.0, where pip check fails unless pybind11 is a runtime dependency.

[boegel]

@boegelbot please test @ generoso

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=21564 EB_ARGS= EB_CONTAINER= EB_REPO=easybuild-easyconfigs /opt/software/slurm/bin/sbatch --job-name test_PR_21564 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 14636

Test results coming soon (I hope)...

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Message to humans: this is just bookkeeping information for me,
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[boegel]

@boegelbot please test @ generoso

[boegelbot]

@boegel: Request for testing this PR well received on login1

PR test command 'EB_PR=21564 EB_ARGS= EB_CONTAINER= EB_REPO=easybuild-easyconfigs /opt/software/slurm/bin/sbatch --job-name test_PR_21564 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 14693

Test results coming soon (I hope)...

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[boegel]

Testing this on generoso doesn't work because of the 5.0.x target branch:

ERROR: Framework (4.9.5.dev0-rd700144108b3a5508659a4d957c7594d35033e62) is a different major version than used in easybuilders/easybuild-easyconfigs PR #21564 (5.0.0.dev0)

@jfgrimm With that, I think we can merge this...