In a recent PRs, we removed support for the perf ARM64 variant in favour of perf ARM64_V9 variants. However, a corresponding perf ARMv9 task was not created for

- <<: *perf-tasks-template
  name: ubuntu2004-perf-tests-arm64-only
  display_name: ~ Ubuntu 20.04 Performance tests (ARM64 only)
  run_on:
    - ubuntu2004-arm64-perf-testing
  expansions:
    <<: *ubuntu2004-perf-tests-expansions-template
    collection: AllPerfTestsARM64
  tasks:
    - name: compile
    - ".cppsuite-perf-test-arm"

which introduces inconsistency.

Action Items:

• Add the corresponding ARM64_V9 perf vairant
• Remove the existing perf ARM64 vairant for the same
• Ensure the collections is AllPerfTestsARM64 updated to AllPerfTestsARM64_v9