fix(ci): apply PR #767 huge-alloc deselects to tests-and-quality-gates.yml

[lusoris]

Summary

• PR fix(ci): extend ASan/UBSan + TSan exclusion list for intentional huge-alloc tests #767 (bb42e36) added test_gpu_picture_pool_uaf, test_integer_motion_v2_coverage, and test_pic_preallocation to the exclusion list in sanitizers.yml only — the original ADR-0347 case-based deselect mechanism in tests-and-quality-gates.yml was left unmodified.
• That matrix job (sanitizer: [address, undefined, thread]) was still running all three tests and SIGABRTing on the intentional ~192 GiB OOM allocation path in each.
• This PR mirrors the same EXCLUDE additions to all three address, undefined, and thread arms of the case block in tests-and-quality-gates.yml.

Root cause

tests-and-quality-gates.yml and sanitizers.yml are two separate sanitizer gates. PR #767 fixed the new dedicated file but not the original matrix job, which uses a case "${{ matrix.sanitizer }}" shell construct (the ADR-0347 deselect mechanism) rather than inline grep -vE patterns.

Test plan

• CI: Sanitizers — ASan + UBSan + MSan matrix job in tests-and-quality-gates.yml should no longer SIGABRT on the three OOM tests.
• Verify: grep -vE 'test_model$|test_y4m_alloc_failure$|test_gpu_picture_pool_uaf$|test_integer_motion_v2_coverage$|test_pic_preallocation$' locally filters all 5 excluded tests and leaves the rest intact.
• No source, header, or test file is modified — CI-only change.

Deliverables checklist

• research digest: no digest needed: trivial one-line regex extension to CI workflow
• decision matrix: no alternatives: only-one-way fix — add the same pattern to the case block that was already fixed in sanitizers.yml
• AGENTS.md invariant: no rebase-sensitive invariants
• reproducer: echo -e "libvmaf:test_gpu_picture_pool_uaf\nlibvmaf:test_psnr" | grep -vE 'test_model$|test_y4m_alloc_failure$|test_gpu_picture_pool_uaf$|test_integer_motion_v2_coverage$|test_pic_preallocation$' — passes through only libvmaf:test_psnr
• changelog fragment: changelog.d/fixed/sanitizer-deselect-tests-quality-gates.md
• rebase-notes: entry added

state.md

No new bug opened or closed — this is a CI-wiring fix for the gap left by PR #767; no new defect tracking row needed.

ffmpeg-patches

No public C-API or meson_options.txt change — exempt.

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