fix: remove verification when ca is empty

[yndu13]

No description provided.

[codecov-commenter]

Codecov Report

Merging #164 (84ae0dd) into master (50cbc43) will increase coverage by 0.29%.
The diff coverage is 66.66%.

❗ Current head 84ae0dd differs from pull request most recent head 15883f7. Consider uploading reports for the commit 15883f7 to get more accurate results

@@             Coverage Diff              @@
##             master     #164      +/-   ##
============================================
+ Coverage     87.72%   88.01%   +0.29%     
- Complexity      394      397       +3     
============================================
  Files            27       27              
  Lines          1075     1076       +1     
  Branches        157      158       +1     
============================================
+ Hits            943      947       +4     
+ Misses           86       83       -3     
  Partials         46       46              

Flag	Coverage Δ
java	88.01% <66.66%> (+0.29%)	⬆️

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

Impacted Files	Coverage Δ
...ava/com/aliyun/tea/okhttp/OkHttpClientBuilder.java	83.87% <66.66%> (+3.43%)	⬆️

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