[ci-scan] Skip X509Certificate2CollectionRemoveRangeArray under R2R (refs #128482)

[github-actions]

Reasoning

X509Certificate2CollectionRemoveRangeArray fails exclusively under crossgen2 R2R compilation on all platforms (linux-x64, osx-x64, windows-x64). The test expects 2 certificates to remain after RemoveRange but finds 0, suggesting a R2R compilation issue affecting collection mutation. The [ActiveIssue(..., typeof(PlatformDetection), nameof(PlatformDetection.IsReadyToRunCompiled))] attribute precisely targets R2R mode only.

Linked KBE: dotnet#128482

Match verification (from Step 4.8):

1. Same test/family: yes — X509Certificate2CollectionRemoveRangeArray
2. Same failure signature: yes — Assert.Equal() Failure: Values differ Expected: 2 Actual: 0
3. Same OS: yes — all platforms (linux, osx, windows)
4. Same architecture: yes — x64 (all crossgen2 legs)

Impact on platforms

• runtime-coreclr crossgen2 (def 124) / linux-x64 Release TestReadyToRun_Libraries — exit code 1
• runtime-coreclr crossgen2 (def 124) / osx-x64 Release TestReadyToRun_Libraries — exit code 1
• runtime-coreclr crossgen2 (def 124) / windows-x64 Release TestReadyToRun_Libraries — exit code 1

Errors log

[FAIL] System.Security.Cryptography.X509Certificates.Tests.CollectionTests.X509Certificate2CollectionRemoveRangeArray
Assert.Equal() Failure: Values differ
Expected: 2
Actual:   0
   at System.Security.Cryptography.X509Certificates.Tests.CollectionTests.X509Certificate2CollectionRemoveRangeArray() in /_/src/libraries/System.Security.Cryptography/tests/X509Certificates/CollectionTests.cs:line 1037

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1426059
• Finished: 2026-05-19
• Occurrences in window: 4+ consecutive builds
• Prior build 1424233 on 2026-05-18 succeeded.

Linked issue

dotnet#128482

Note

🔒 Integrity filter blocked 1 item

The following item was blocked because it doesn't meet the GitHub integrity level.

• #105207 search_pull_requests: has lower integrity than agent requires. The agent cannot read data with integrity below "approved".

To allow these resources, lower min-integrity in your GitHub frontmatter:

tools:
  github:
    min-integrity: approved  # merged | approved | unapproved | none

Generated by CI Outer-Loop Failure Scanner · ● 35.3M · ◷