chore(ci): remove setup kafka step

[skyzh]

Signed-off-by: Alex Chi iskyzh@gmail.com

What's changed and what's your intention?

As title, to solve frequent timeout.

Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests

Refer to a related PR or issue link (optional)

[codecov]

Codecov Report

Merging #1752 (c9e0d33) into main (877f9b8) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1752      +/-   ##
==========================================
+ Coverage   71.38%   71.41%   +0.02%     
==========================================
  Files         600      600              
  Lines       77725    77726       +1     
==========================================
+ Hits        55483    55505      +22     
+ Misses      22242    22221      -21     

Flag	Coverage Δ
rust	71.41% <ø> (+0.02%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/source/src/manager.rs	50.16% <0.00%> (-0.17%)	⬇️
src/common/src/types/ordered_float.rs	23.70% <0.00%> (+0.19%)	⬆️
src/connector/src/filesystem/file_common.rs	80.80% <0.00%> (+0.44%)	⬆️
src/storage/src/hummock/local_version_manager.rs	88.29% <0.00%> (+4.68%)	⬆️
src/meta/src/hummock/mock_hummock_meta_client.rs	52.00% <0.00%> (+5.33%)	⬆️
src/meta/src/manager/stream_clients.rs	96.29% <0.00%> (+7.40%)	⬆️

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