fix NSS easyconfigs by not keeping symlinks when copying files to installation

[branfosj]

(created using eb --new-pr)

cfr. easybuilders/easybuild-framework#4794

fallout from:

• enable keeping of symbolic links by default when copying (set keepsymlinks easyconfig parameter to True) easybuild-framework#4773

[boegel]

@boegelbot please test @ jsc-zen3
EB_BRANCH=5.0.x
EB_ARGS="--installpath /tmp/$USER/pr22471"

[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=22471 EB_ARGS="--installpath /tmp/$USER/pr22471" EB_CONTAINER= EB_REPO=easybuild-easyconfigs EB_BRANCH="5.0.x" /opt/software/slurm/bin/sbatch --job-name test_PR_22471 --ntasks=8 ~/boegelbot/eb_from_pr_upload_jsc-zen3.sh' executed!

• exit code: 0
• output:

Submitted batch job 5883

Test results coming soon (I hope)...

Details

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Message to humans: this is just bookkeeping information for me,
it is of no use to you (unless you think I have a bug, which I don't).

[branfosj]

Test report by @branfosj
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
bear-pg0105u03a - Linux RHEL 8.10, x86_64, Intel(R) Xeon(R) Platinum 8360Y CPU @ 2.40GHz (icelake), Python 3.6.8
See https://gist.github.com/branfosj/4752231e02dd072bc7da76ed9e51733b for a full test report.

[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 8 out of 8 (8 easyconfigs in total)
jsczen3c1.int.jsc-zen3.fz-juelich.de - Linux Rocky Linux 9.5, x86_64, AMD EPYC-Milan Processor (zen3), Python 3.9.21
See https://gist.github.com/boegelbot/3fa291ccb454f1685e6e0fc428a2a1fb for a full test report.