[ci-scan] Skip DnsGetHost*_LocalhostSubdomain on Android (refs #128371)

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Reasoning

DnsGetHostAddresses_LocalhostSubdomain_RespectsAddressFamily and DnsGetHostEntry_LocalhostSubdomain_RespectsAddressFamily fail on Android because the Android resolver returns IPv6 addresses when AddressFamily.InterNetwork is requested. The [ActiveIssue(..., TestPlatforms.Android)] attribute is the narrowest condition matching the observed failure scope (only Android).

Linked KBE: dotnet#128371

Match verification (from Step 4.8):

1. Same test/family: yes — DnsGetHostAddresses_LocalhostSubdomain_RespectsAddressFamily and DnsGetHostEntry_LocalhostSubdomain_RespectsAddressFamily
2. Same failure signature: yes — Assert.All() Failure: items did not pass / Expected: InterNetwork Actual: InterNetworkV6
3. Same OS: yes — Android
4. Same architecture: yes — arm64 (and all Android archs based on issue hits)

Impact on platforms

• runtime-extra-platforms (def 154) / android-arm64 Release AllSubsets_CoreCLR @ windows.11.amd64.android.open — exit code 1
• runtime-extra-platforms (def 154) / android-arm64 Release NativeAOT — exit code 1

Errors log

[FAIL] System.Net.NameResolution.Tests.GetHostAddressesTest.DnsGetHostAddresses_LocalhostSubdomain_RespectsAddressFamily(addressFamily: InterNetwork)
Assert.All() Failure: 10 out of 12 items in the collection did not pass.
[1]: Item: fe80::f09f:ff:fe73:75e3%47
Error: Assert.Equal() Failure: Values differ
Expected: InterNetwork
Actual: InterNetworkV6

First build it occurred

• Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1424079
• Finished: 2026-05-18T09:03:04Z
• Occurrences in window: 11 (persistent)

Linked issue

dotnet#128371

Note

🔒 Integrity filter blocked 1 item

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

• #105207search_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 · ◷