fix the compile for client's version check

[Nicole00]

No description provided.

[codecov-commenter]

Codecov Report

Merging #27 (fbc3d4e) into master (aea23c7) will not change coverage.
The diff coverage is 0.00%.

@@            Coverage Diff            @@
##             master      #27   +/-   ##
=========================================
  Coverage     38.19%   38.19%           
  Complexity      134      134           
=========================================
  Files            45       45           
  Lines          1309     1309           
  Branches        116      116           
=========================================
  Hits            500      500           
  Misses          765      765           
  Partials         44       44           

Impacted Files	Coverage Δ
...onnector/nebula/catalog/AbstractNebulaCatalog.java	0.00% <0.00%> (ø)
....flink/connector/nebula/catalog/NebulaCatalog.java	0.00% <0.00%> (ø)
...bula/connection/NebulaGraphConnectionProvider.java	87.50% <ø> (ø)
...ebula/connection/NebulaMetaConnectionProvider.java	51.28% <ø> (ø)
...connector/nebula/sink/NebulaBatchOutputFormat.java	49.12% <0.00%> (ø)

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