Load binlog for different field in parallel

[xiaofan-luan]

fix #17004
Signed-off-by: xiaofan-luan xiaofan.luan@zilliz.com

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[codecov]

Codecov Report

Merging #17005 (65c56f5) into master (328ab7e) will increase coverage by 0.10%.
The diff coverage is 89.47%.

@@            Coverage Diff             @@
##           master   #17005      +/-   ##
==========================================
+ Coverage   81.15%   81.26%   +0.10%     
==========================================
  Files         456      456              
  Lines       72712    72710       -2     
==========================================
+ Hits        59011    59086      +75     
+ Misses      10966    10890      -76     
+ Partials     2735     2734       -1     

Impacted Files	Coverage Δ
internal/querynode/segment_loader.go	68.98% <89.47%> (+0.39%)	⬆️
internal/kv/rocksdb/RocksIterator.go	72.09% <0.00%> (-6.98%)	⬇️
internal/rootcoord/task.go	78.15% <0.00%> (-1.18%)	⬇️
internal/datacoord/server.go	73.39% <0.00%> (-0.78%)	⬇️
internal/rootcoord/meta_table.go	82.08% <0.00%> (-0.49%)	⬇️
internal/rootcoord/root_coord.go	80.78% <0.00%> (-0.23%)	⬇️
internal/indexcoord/index_coord.go	78.33% <0.00%> (ø)
internal/proxy/channels_time_ticker.go	80.59% <0.00%> (ø)
internal/proxy/task.go	81.61% <0.00%> (+0.12%)	⬆️
... and 13 more

[yah01]

/lgtm
Thanks xiaofan! It seems that I removed the code of loading fields in parallel when resolving conflicts...
We may reach the better by: to deserialize fields in parallel, this works for sealed segments, I will implement that later