Update tensorflow to 2.1.2 to fix multiple vulnerabilities

[mrodozov]

please test
externals are the same, no nee to update protobuf for this version
see https://github.com/tensorflow/tensorflow/releases/tag/v2.1.2

[cmsbuild]

The tests are being triggered in jenkins.

• CMSSW_11_2_X_2020-10-15-2300/slc7_amd64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/10004/console Started: 2020/10/16 09:26
• CMSSW_11_2_X_2020-10-15-2300/slc7_ppc64le_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/10019/console Started: 2020/10/16 14:24
• CMSSW_11_2_X_2020-10-15-1100/slc7_aarch64_gcc820: https://cmssdt.cern.ch/jenkins/job/ib-run-pr-tests/10020/console Started: 2020/10/16 14:25

[cmsbuild]

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

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

[cmsbuild]

+1
Tested at: 1706a74
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ec2b0d/10004/summary.html
CMSSW: CMSSW_11_2_X_2020-10-15-2300
SCRAM_ARCH: slc7_amd64_gcc820

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ec2b0d/10004/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 7 differences found in the comparisons
• DQMHistoTests: Total files compared: 35
• DQMHistoTests: Total histograms compared: 2543752
• DQMHistoTests: Total failures: 13
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2543717
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 34 files compared)
• Checked 149 log files, 22 edm output root files, 35 DQM output files

[cmsbuild]

-1

Tested at: 1706a74

CMSSW: CMSSW_11_2_X_2020-10-15-1100
SCRAM_ARCH: slc7_aarch64_gcc820
You can see the results of the tests here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ec2b0d/10020/summary.html

I found follow errors while testing this PR

Failed tests: RelVals

• RelVals:

When I ran the RelVals I found an error in the following workflows:
1325.7 step2

runTheMatrix-results/1325.7_TTbar_13_94Xv2NanoAODINPUT+TTbar_13_94Xv2NanoAODINPUT+NANOEDMMC2017_94XMiniAODv2+HARVESTNANOAODMC2017_94XMiniAODv2/step2_TTbar_13_94Xv2NanoAODINPUT+TTbar_13_94Xv2NanoAODINPUT+NANOEDMMC2017_94XMiniAODv2+HARVESTNANOAODMC2017_94XMiniAODv2.log

[cmsbuild]

Comparison not run due to runTheMatrix errors (RelVals and Igprof tests were also skipped)

[cmsbuild]

+1
Tested at: 1706a74
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-ec2b0d/10019/summary.html
CMSSW: CMSSW_11_2_X_2020-10-15-2300
SCRAM_ARCH: slc7_ppc64le_gcc820

[cmsbuild]

Comparison job queued.

[smuzaffar]

+externals
looks good

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_11_2_X/master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @silviodonato, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)