BuildRule: Fix emdplugin cache for multiarch builds

[smuzaffar]

We had stopped building cuda/romc backends of alpaka for extra micro-archs of MULTIARCHS/SKYLAKE IBs. Thsi caused runtime issue as the lib/arch/microarch/.edmplugin is a symlink to lib/arch/.edmplugin and CMS FW was trying to load the CudaAsync.so libs from the ``lib/arch/microarch( as thelib/arch/microarch/.edmplugin` still had the ref to it). The buildrule update fixes these issue and instead of creaing symlink it now properly creates a separate `.edmplugincache` file for each `lib/arch/microarch/.edmplugin`

[cmsbuild]

A new Pull Request was created by @smuzaffar (Malik Shahzad Muzaffar) for branch IB/CMSSW_14_1_X/master.

@smuzaffar, @aandvalenzuela, @iarspider, @cmsbuild can you please review it and eventually sign? Thanks.
@sextonkennedy, @antoniovilela, @rappoccio you are the release manager for this.
cms-bot commands are listed here

[cmsbuild]

cms-bot internal usage

[smuzaffar]

test parameters:

• full_cmssw = true

[smuzaffar]

please test

[smuzaffar]

please test

[cmsbuild]

Pull request #8990 was updated.

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-674021/37264/summary.html
COMMIT: 0bb3bc9
CMSSW: CMSSW_14_1_X_2024-02-06-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmsdist/8990/37264/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 268 lines from the logs
• Reco comparison results: 56 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3248626
• DQMHistoTests: Total failures: 1186
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3247418
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 200 log files, 161 edm output root files, 48 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, @sextonkennedy, @antoniovilela (and backports should be raised in the release meeting by the corresponding L2)