replace run_cmd with run_shell_cmd in custom easyblock for numpy (numpy.py)

[branfosj]

(created using eb --new-pr)

• no use of EB_numpy in easyconfigs or blocks

[branfosj]

Test report by @branfosj

Overview of tested easyconfigs (in order)

• SUCCESS tokenizers-0.13.3-GCCcore-12.2.0.eb
• SUCCESS SciPy-bundle-2023.11-gfbf-2023b.eb
• SUCCESS SciPy-bundle-2023.07-iimkl-2023a.eb
• SUCCESS SciPy-bundle-2023.02-gfbf-2022b.eb
• SUCCESS SciPy-bundle-2022.05-foss-2022a.eb
• SUCCESS SciPy-bundle-2020.11-foss-2020b.eb
• SUCCESS rustworkx-0.12.1-foss-2022a.eb
• SUCCESS hypothesis-4.57.1-GCCcore-11.2.0-Python-2.7.18.eb
• SUCCESS SciPy-bundle-2021.10-foss-2021b-Python-2.7.18.eb

Build succeeded for 9 out of 9 (8 easyconfigs in total)
bear-pg0105u03b - Linux RHEL 8.6, x86_64, Intel(R) Xeon(R) Platinum 8360Y CPU @ 2.40GHz (icelake), Python 3.6.8
See https://gist.github.com/branfosj/600c82674b75156f78192773346745e6 for a full test report.

[boegel]

lgtm

[boegel]

Test report by @boegel

Overview of tested easyconfigs (in order)

• SUCCESS SciPy-bundle-2023.11-gfbf-2023b.eb

Build succeeded for 1 out of 1 (1 easyconfigs in total)
node3557.doduo.os - Linux RHEL 8.8, x86_64, AMD EPYC 7552 48-Core Processor, Python 3.6.8
See https://gist.github.com/boegel/8617fabe261561f63c0404fb341ff7f8 for a full test report.