update pythia8 (93X)

[kpedro88]

backport of #3860

[cmsbuild]

A new Pull Request was created by @kpedro88 (Kevin Pedro) for branch IB/CMSSW_9_3_X/gcc630.

@cmsbuild, @smuzaffar, @gudrutis, @mrodozov can you please review it and eventually sign? Thanks.
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• Backported from update pythia8 #3860

[smuzaffar]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/27032/console

[cmsbuild]

+1
Tested at: 2a158eb
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3862/27032/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-3862/27032/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 25
• DQMHistoTests: Total histograms compared: 2624448
• DQMHistoTests: Total failures: 223
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2624048
• DQMHistoTests: Total skipped: 177
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0 KiB( 0 files compared)
• Checked 105 log files, 8 edm output root files, 25 DQM output files

[kpedro88]

@smuzaffar can you merge this?

[smuzaffar]

@kpedro88 done