SSVL: update activities to add labels include/exclude (backend changes)

[mna]

#24792 (backend changes only)

Checklist for submitter

• Changes file added for user-visible changes in changes/, orbit/changes/ or ee/fleetd-chrome/changes.
  See Changes files for more information.
• Added/updated tests

[codecov]

Codecov Report

Attention: Patch coverage is 82.85714% with 12 lines in your changes missing coverage. Please review.

Please upload report for BASE (feat-labels-scoped-software@79ac8fa). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
ee/server/service/software_installers.go	80.32%	8 Missing and 4 partials ⚠️

Additional details and impacted files

@@                      Coverage Diff                       @@
##             feat-labels-scoped-software   #24839   +/-   ##
==============================================================
  Coverage                               ?   63.68%           
==============================================================
  Files                                  ?     1603           
  Lines                                  ?   152296           
  Branches                               ?     3952           
==============================================================
  Hits                                   ?    96987           
  Misses                                 ?    47567           
  Partials                               ?     7742           

Flag	Coverage Δ
backend	64.48% <82.85%> (?)

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