Update DeepBoostedJet json to match the MXNet version

[smuzaffar]

To integrate cms-data/RecoBTag-Combined#16 (#4316)

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_10_3_X/gcc700.

@cmsbuild, @smuzaffar, @gudrutis, @mrodozov can you please review it and eventually sign? Thanks.
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[cmsbuild]

The tests are being triggered in jenkins.
Using cmssw from cms-sw/cmssw#23768
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/30296/console

[cmsbuild]

+1
Tested at: fbca746
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-23768/30296/summary.html

[cmsbuild]

Comparison job queued.

[slava77]

@smuzaffar
the updates from this PR did the job:

in the tests of cms-sw/cmssw#23768

• without this PR DeepAK8 tagger integration cmssw#23768 (comment) we see warnings/printouts e.g. in https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-23768/30236/runTheMatrix-results/136.8311_RunJetHT2017F_reminiaod+RunJetHT2017F_reminiaod+REMINIAOD_data2017+HARVEST2017_REMINIAOD_data2017/step2_RunJetHT2017F_reminiaod+RunJetHT2017F_reminiaod+REMINIAOD_data2017+HARVEST2017_REMINIAOD_data2017.log src/nnvm/legacy_json_util.cc:209: Loading symbol saved ...
• with this PR DeepAK8 tagger integration cmssw#23768 (comment) : the same workflow log does not have these printouts anymore https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-23768/30296/runTheMatrix-results/136.8311_RunJetHT2017F_reminiaod+RunJetHT2017F_reminiaod+REMINIAOD_data2017+HARVEST2017_REMINIAOD_data2017/step2_RunJetHT2017F_reminiaod+RunJetHT2017F_reminiaod+REMINIAOD_data2017+HARVEST2017_REMINIAOD_data2017.log

So, this external update can be merged.

[smuzaffar]

+externals

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_10_3_X/gcc700 IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @davidlange6, @slava77, @smuzaffar, @fabiocos (and backports should be raised in the release meeting by the corresponding L2)