chore: longrunning tests to ignore multiRM marked e2e tests

[amandavialva01]

Ticket

No ticket.

Description

End-to-end tests in the long-running workflow use clusters from an isolated GCP project that doesn't have vast visibility, making them difficult to use for multiRM / multi-cluster testing. The shared cluster(s), having better visibility and long-standing setups, are more usable for multiRM testing. Filter out multiRM tests from long-running tests and run any necessary multiRM end-to-end GKE tests in the shared cluster workflow.

Test Plan

CI passes (particularly, long-running workflow passes)

Checklist

• Changes have been manually QA'd
• User-facing API changes need the "User-facing API Change" label.
• Release notes should be added as a separate file under docs/release-notes/.
  See Release Note for details.
• Licenses should be included for new code which was copied and/or modified from any external code.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.92%. Comparing base (05ea5aa) to head (17eaf19).

Additional details and impacted files

@@                   Coverage Diff                   @@
##           wksp-namespace-binding    #9514   +/-   ##
=======================================================
  Coverage                   48.91%   48.92%           
=======================================================
  Files                        1238     1238           
  Lines                      161348   161348           
  Branches                     2783     2783           
=======================================================
+ Hits                        78931    78941   +10     
+ Misses                      82242    82232   -10     
  Partials                      175      175           

Flag	Coverage Δ
backend	43.87% <ø> (+0.01%)	⬆️
harness	63.71% <ø> (ø)
web	44.08% <ø> (ø)

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see 5 files with indirect coverage changes