Fix GitHub download link in for libpsl 0.21.1

[randallpittman]

The existing download link in this doesn't work anymore. This file was added by #16087.

[casparvl]

@boegelbot please test @ generoso

[boegelbot]

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

PR test command 'EB_PR=16397 EB_ARGS= /opt/software/slurm/bin/sbatch --job-name test_PR_16397 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 9275

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).

[boegelbot]

Test report by @boegelbot
SUCCESS
Build succeeded for 1 out of 1 (1 easyconfigs in total)
cns1 - Linux Rocky Linux 8.5, x86_64, Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz (haswell), Python 3.6.8
See https://gist.github.com/454b97cb3e81029d853041990b71b0e5 for a full test report.

[casparvl]

Test report by @casparvl
SUCCESS
Build succeeded for 3 out of 3 (1 easyconfigs in total)
tcn1.local.snellius.surf.nl - Linux RHEL 8.4, x86_64, AMD EPYC 7H12 64-Core Processor, Python 3.6.8
See https://gist.github.com/18d9107d79c2ddbe206d8ee7d122e17b for a full test report.

[casparvl]

Test report by @casparvl
SUCCESS
Build succeeded for 3 out of 3 (1 easyconfigs in total)
software1.lisa.surfsara.nl - Linux debian 10.13, x86_64, Intel(R) Xeon(R) Silver 4110 CPU @ 2.10GHz, Python 3.7.3
See https://gist.github.com/a2620b5051c7b2b687b44a64de1528d2 for a full test report.

[casparvl]

lgtm!

[casparvl]

Going in, thanks @randallpittman!