[12.0.X] add onlineBeamSpotESProducer to BeamSpot_cfi: fix general Online BS swap case

[mmusich]

backport of #35639

PR description:

In PR #35373 the general case for the online <-> offline BS swap done via modifiers was missed, leading to issues in the visualization DQM clients.
This PR supplies the onlineBeamSpotESProducer to BeamSpot_cfi as a general case fix-up.

PR validation:

Run cmsRun DQM/Integration/python/clients/visualization-live_cfg.py unitTest=True
that before was crashing with:

...
Exception Message:
No "BeamSpotTransientObjectsRcd" record found in the EventSetup.n
 Please add an ESSource or ESProducer that delivers such a record.
----- End Fatal Exception -------------------------------------------------

while now crashes differently with:

----- Begin Fatal Exception 13-Oct-2021 10:41:57 CEST-----------------------
An exception of category 'NoProxyException' occurred while
   [0] Processing  Event run: 334393 lumi: 1 event: 16132 stream: 1
   [1] Running path 'FEVToutput_step'
   [2] Prefetching for module JsonWritingTimeoutPoolOutputModule/'FEVToutput'
   [3] Prefetching for module ReducedRecHitCollectionProducer/'reducedEcalRecHitsEB'
   [4] Prefetching for module EleIsoDetIdCollectionProducer/'interestingGedEleIsoDetIdEB'
   [5] Calling method for module GEDGsfElectronFinalizer/'gedGsfElectrons'
Exception Message:
No data of type "GBRForestD" with label "electron_eb_ecalOnly_1To300_0p2To2_mean" in record "GBRDWrapperRcd"
 Please add an ESSource or ESProducer to your job which can deliver this data.
----- End Fatal Exception -------------------------------------------------

if this PR is a backport please specify the original PR and why you need to backport that PR:

Backported from #35639

[cmsbuild]

A new Pull Request was created by @mmusich (Marco Musich) for CMSSW_12_0_X.

It involves the following packages:

• RecoVertex/BeamSpotProducer (reconstruction, alca)

@malbouis, @yuanchao, @cmsbuild, @slava77, @jpata, @tvami, @francescobrivio can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @JanFSchulte, @rovere, @VinInn, @tocheng, @mmusich, @mtosi, @dgulhan, @francescobrivio this is something you requested to watch as well.
@perrotta, @dpiparo, @qliphy you are the release manager for this.

cms-bot commands are listed here

• Backported from add onlineBeamSpotESProducer to BeamSpot_cfi: fix general Online BS swap case #35639

[tvami]

@cmsbuild , please test with #35561

[tvami]

@cmsbuild please abort

[tvami]

test parameters:

• pull_request = [120X] Add GTs for Run-3 test beam data taking + edit DQM unit test run number and dataset #35561

[tvami]

@cmsbuild , please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-c6d601/19607/summary.html
COMMIT: 7527bdc
CMSSW: CMSSW_12_0_X_2021-10-13-1100/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/35653/19607/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 4 differences found in the comparisons
• DQMHistoTests: Total files compared: 39
• DQMHistoTests: Total histograms compared: 2998564
• DQMHistoTests: Total failures: 6
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2998536
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 38 files compared)
• Checked 165 log files, 37 edm output root files, 39 DQM output files
• TriggerResults: no differences found

[tvami]

+alca

[cmsbuild]

Pull request #35653 was updated. @malbouis, @yuanchao, @cmsbuild, @slava77, @jpata, @tvami, @francescobrivio can you please check and sign again.

[mmusich]

in the last commit, I've just fixed the typo spotted by @perrotta at #35639 (comment)

[tvami]

@cmsbuild , please test

[tvami]

+alca

• last commit was just a typo

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-c6d601/19666/summary.html
COMMIT: f302c38
CMSSW: CMSSW_12_0_X_2021-10-15-1100/slc7_amd64_gcc900
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/35653/19666/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 39
• DQMHistoTests: Total histograms compared: 2998564
• DQMHistoTests: Total failures: 0
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2998542
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 38 files compared)
• Checked 165 log files, 37 edm output root files, 39 DQM output files
• TriggerResults: no differences found

[slava77]

+reconstruction

for #35653 f302c38

• code changes since the last reco signoff are just a typo fix in the method name

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_12_0_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_12_1_X is complete. This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @qliphy (and backports should be raised in the release meeting by the corresponding L2)

[perrotta]

+1

• Identical implementation of the fix as in add onlineBeamSpotESProducer to BeamSpot_cfi: fix general Online BS swap case #35639, succesfully merged in master since CMSSW_12_1_X_2021-10-15-2300