Drop py3-Theano, py3-downhill and py3-hep_ml

[iarspider]

These packages are unmaintaned and incompatible with newer versions of py3-numpy

[cmsbuild]

A new Pull Request was created by @iarspider for branch IB/CMSSW_13_2_X/master.

@cmsbuild, @smuzaffar, @aandvalenzuela, @iarspider can you please review it and eventually sign? Thanks.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.
cms-bot commands are listed here

[iarspider]

please test

[smuzaffar]

@iarspider , you need to cleanup the specs to remove the dependency on these package e.g
https://github.com/search?q=repo%3Acms-sw%2Fcmsdist%20Theano&type=code

[cmsbuild]

Pull request #8562 was updated.

[smuzaffar]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3bd9ed/33339/summary.html
COMMIT: 826172d
CMSSW: CMSSW_13_2_X_2023-06-22-1100/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmsdist/8562/33339/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 9 lines to the logs
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3200270
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3200245
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 207 log files, 159 edm output root files, 48 DQM output files
• TriggerResults: no differences found