Fix group search

[alexanderguzhva]

Fixes milvus-io/milvus#37135
The problem was in the reinterpreting fp16 and bf16 data as fp32 one

this PR contains #904 as well

knowhere issue: #916

[mergify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.22%. Comparing base (3c46f4c) to head (064c323).
Report is 230 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##           main     #913       +/-   ##
=========================================
+ Coverage      0   79.22%   +79.22%     
=========================================
  Files         0       81       +81     
  Lines         0     6348     +6348     
=========================================
+ Hits          0     5029     +5029     
- Misses        0     1319     +1319     

see 81 files with indirect coverage changes

[liliu-z]

/lgtm

[alexanderguzhva]

/rerun-e2e

[liliu-z]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alexanderguzhva, liliu-z

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[liliu-z]

/kind enhancement