fix checksum for cell2location 0.05-alpha and add missing build dependency on flex

[boegel]

(created using eb --new-pr)

It looks like the 0.05-alpha tag in was changed, since the contents of the source tarball are different now (notebooks were removed):

$ diff -ru cell2location-0.05-alpha.old cell2location-0.05-alpha.new
Only in cell2location-0.05-alpha.old/docs/notebooks: cell2location_estimating_signatures.ipynb
Only in cell2location-0.05-alpha.old/docs/notebooks: cell2location_short_demo.ipynb
Only in cell2location-0.05-alpha.old/docs/notebooks: cell2location_short_demo_colab.ipynb
Only in cell2location-0.05-alpha.old/docs/notebooks: cell2location_short_demo_downstream.ipynb
Only in cell2location-0.05-alpha.old/docs/notebooks: results
Only in cell2location-0.05-alpha.old: notebooks

Probably somehow related to BayraktarLab/cell2location@d4e4323

[boegel]

@boegelbot please test @ generoso

[boegelbot]

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

PR test command 'EB_PR=16819 EB_ARGS= EB_CONTAINER= /opt/software/slurm/bin/sbatch --job-name test_PR_16819 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 9706

Test results coming soon (I hope)...

Details

- notification for comment with ID 1341356077 processed

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
FAILED
Build succeeded for 0 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/5a0cb775b59df6615222604bb0607011 for a full test report.

[lexming]

@boegelbot: please test @ generoso

[boegelbot]

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

PR test command 'EB_PR=16819 EB_ARGS= EB_CONTAINER= /opt/software/slurm/bin/sbatch --job-name test_PR_16819 --ntasks=4 ~/boegelbot/eb_from_pr_upload_generoso.sh' executed!

• exit code: 0
• output:

Submitted batch job 9720

Test results coming soon (I hope)...

Details

- notification for comment with ID 1342783214 processed

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/2d4167f9d2917082393e8b237a52119e for a full test report.

[lexming]

LGTM

[lexming]

Going in, thanks @boegel !