[Geant4] Update Geant4 branch to use 10.7.0 Beta

[mrodozov]

please test
Resolves: cms-externals/geant4#47
both are building but that wasn't enough the last time, lets see
change the geant repo to their official github (they have one now)
The tag 10.7.0.beta was tagged from master, should be fine

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_GEANT4_X_2020-06-25-2300/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/7517/console Started: 2020/06/30 15:01

[cmsbuild]

A new Pull Request was created by @mrodozov (Mircho Rodozov) for branch IB/CMSSW_11_2_X/geant4.

@cmsbuild, @smuzaffar, @mrodozov, @tulamor can you please review it and eventually sign? Thanks.
cms-bot commands are listed here

[cmsbuild]

+1
Tested at: e5733a6
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6c32f8/7517/summary.html
CMSSW: CMSSW_11_2_GEANT4_X_2020-06-25-2300
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6c32f8/7517/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 44385 differences found in the comparisons
• DQMHistoTests: Total files compared: 36
• DQMHistoTests: Total histograms compared: 2778915
• DQMHistoTests: Total failures: 306912
• DQMHistoTests: Total nulls: 8
• DQMHistoTests: Total successes: 2471945
• DQMHistoTests: Total skipped: 50
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: -2.532 KiB( 35 files compared)
• DQMHistoSizes: changed ( 10224.0 ): -0.479 KiB SiStrip/MechanicalView
• DQMHistoSizes: changed ( 10224.0 ): 0.004 KiB MessageLogger/Warnings
• DQMHistoSizes: changed ( 250202.181 ): -0.654 KiB SiStrip/MechanicalView
• DQMHistoSizes: changed ( 25202.0 ): -0.527 KiB SiStrip/MechanicalView
• DQMHistoSizes: changed ( 7.3 ): -5.715 KiB SiStrip/MechanicalView
• DQMHistoSizes: changed ( 8.0 ): 4.839 KiB SiStrip/MechanicalView
• Checked 152 log files, 16 edm output root files, 36 DQM output files

[smuzaffar]

+externals