Remove google_benchmark_vendor dependency

[mosfet80]

Description

The google_benchmark_vendor library is deprecated and the ament_cmake_google_benchmark library is already set as required.

Checklist

• Required by CI: Code is auto formatted using clang-format
• Extend the tutorials / documentation reference
• Document API changes relevant to the user in the MIGRATION.md notes
• Create tests, which fail without this PR reference
• Include a screenshot if changing a GUI
• While waiting for someone to review your request, please help review another open pull request to support the maintainers

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.26%. Comparing base (f737f20) to head (b83913a).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3795      +/-   ##
==========================================
+ Coverage   46.21%   46.26%   +0.05%     
==========================================
  Files         726      726              
  Lines       59510    59511       +1     
  Branches     7623     7623              
==========================================
+ Hits        27497    27526      +29     
+ Misses      31845    31818      -27     
+ Partials      168      167       -1     

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