[14_1_X] Update py3-correctionlib to version 2.6.4

[iarspider]

Backport of #9445

[iarspider]

please test

[cmsbuild]

A new Pull Request was created by @iarspider for branch IB/CMSSW_14_1_X/master.

@aandvalenzuela, @iarspider, @smuzaffar can you please review it and eventually sign? Thanks.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.
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• Backported from Update py3-correctionlib to version 2.6.4 #9445

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-131b94/41865/summary.html
COMMIT: 6a10734
CMSSW: CMSSW_14_1_X_2024-10-01-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/9446/41865/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 22 lines to the logs
• Reco comparison results: 28 differences found in the comparisons
• DQMHistoTests: Total files compared: 44
• DQMHistoTests: Total histograms compared: 3331166
• DQMHistoTests: Total failures: 2235
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3328911
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 43 files compared)
• Checked 191 log files, 161 edm output root files, 44 DQM output files
• TriggerResults: no differences found

[smuzaffar]

+externals

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next IB/CMSSW_14_1_X/master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @rappoccio, @antoniovilela, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)