chore: fix compatibility issues in compatibility verification

[tangcent]

IntelliJ IDEA Ultimate (241.14494.127) compatibility warning.

• 1 usage of scheduled for removal API

  • EasyYapi 2.6.8.212.0 uses API scheduled for removal in future releases
  • Scheduled for removal class usage (1)
    • StringUtils (1) (scheduled for removal in a future release)
    • Deprecated class StringUtils is referenced in FeignRequestClassExporter.resolveHeader(...). This class will be removed in a future release

• 1 deprecated API usage

  • EasyYapi 2.6.8.212.0 uses deprecated API, which may be removed in future releases leading to binary and source code incompatibilities
  • Deprecated method usage (1)
    • PathKt.readText(Path) (1)
    • Deprecated method PathKt.readText(Path) is invoked in HttpClientFileSaver.saveHttpFile(...)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.008%. Comparing base (6b8b0ae) to head (6c8e094).

Additional details and impacted files

@@             Coverage Diff             @@
##              master     #1117   +/-   ##
===========================================
  Coverage     62.008%   62.008%           
  Complexity      2285      2285           
===========================================
  Files            249       249           
  Lines          12100     12100           
  Branches        2984      2984           
===========================================
  Hits            7503      7503           
  Misses          3000      3000           
  Partials        1597      1597           

Flag	Coverage Δ
unittests	62.008% <100.000%> (ø)

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

Files	Coverage Δ
...ugin/api/export/feign/FeignRequestClassExporter.kt	68.235% <100.000%> (ø)
...idea/plugin/api/export/http/HttpClientFileSaver.kt	69.231% <100.000%> (ø)

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