fix: [3.0] update Knowhere for stable IndexNode ABI

[marcelo-cjl]

pr: #52754
issue: #52723
issue: #52724
issue: #52725

Cherry-pick from master.

What

• Update Knowhere from d85f7080 to d7cfd888.
• Pick up fix: keep IndexNode ABI stable across Cardinal builds zilliztech/knowhere#1786, which keeps IndexNode::BuildAsync() in the public vtable for both Cardinal and non-Cardinal builds.
• Pick up the Cardinal v1 bump to v2.5.111, including its nullable-index fix.

Why

In a Cardinal-enabled Milvus build, Knowhere translation units define KNOWHERE_WITH_CARDINAL, while Milvus core consumers of the same public header do not. The previous conditional BuildAsync() declaration therefore gave the two DSOs different IndexNode vtable layouts.

Calls intended for GetIdMap() could dispatch to Count() instead and interpret its integer return as an IdMap&, causing the SIGSEGVs reported in #52723, #52724, and #52725.

Knowhere d7cfd888 makes the public vtable independent of that feature macro.

Validation

• No new local build or test was run for this dependency-pin-only cherry-pick; validation is delegated to Milvus PR CI.
• The underlying Knowhere fix passed Knowhere CI and a prior Milvus 3.0 Cardinal A/B reproduction: the affected ordinary HNSW test changed from SIGSEGV/exit 139 on the old pin to 1/1 passed with the fix.

[sre-ci-robot]

[INFO] PR Label Summary by Default
[FAILED] PR #52754 not merged

• Title: fix: update Knowhere for stable IndexNode ABI
• Status: OPEN
• Link: fix: update Knowhere for stable IndexNode ABI #52754

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[sre-ci-robot]

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[sre-ci-robot]

✅ CI Loop Results 8026c7a

Stage	Result	Duration	Tests
✅ Build	SUCCESS	15.3min	-
✅ Code-Check	SUCCESS	10.4min	-
✅ UT-Integration	SUCCESS	25.3min	-
✅ UT-GO	SUCCESS	23.1min	-
✅ UT-CPP-Cov	SUCCESS	55.1min	8615 total, 8615 passed, 0 failed

Total: 79min | Pipeline | Artifacts

Overall Coverage: 37.3%

[liliu-z]

/lgtm
/approve

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[sre-ci-robot]

[INFO] PR Label Summary by Default
[SUCCESS] PR #52754 merged to master

• Title: fix: update Knowhere for stable IndexNode ABI
• Link: fix: update Knowhere for stable IndexNode ABI #52754

Use /refresh-label to update related check and label manually

[sre-ci-robot]

[INFO] PR Label Summary by Default
[SUCCESS] PR #52754 merged to master

• Title: fix: update Knowhere for stable IndexNode ABI
• Link: fix: update Knowhere for stable IndexNode ABI #52754

Use /refresh-label to update related check and label manually