Add resources_lock_ lock_guards to avoid race condition when loading robot_description through topic (backport #1451)

[mergify]

As reported in #1442, loading the robot_description through the topic will cause a segmentation fault or some undefined behaviors as the read and write methods real-time methods are continuously executed, and when the robot description is received and the resource_manager is to be initialized, there is no lock_guard of recursive mutex resources_lock_, which should avoid the RM to execute the components when they are changing state or being loaded and initialized

Fixes #1442

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This is an automatic backport of pull request #1451 done by Mergify.

[mergify]

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	both modified:   hardware_interface/src/resource_manager.cpp

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.37%. Comparing base (cd55739) to head (0151d10).
Report is 1 commits behind head on humble.

Additional details and impacted files

@@            Coverage Diff             @@
##           humble    #1599      +/-   ##
==========================================
+ Coverage   62.34%   62.37%   +0.02%     
==========================================
  Files         108      108              
  Lines       11405    11407       +2     
  Branches     7979     7981       +2     
==========================================
+ Hits         7111     7115       +4     
+ Misses        817      815       -2     
  Partials     3477     3477              

Flag	Coverage Δ
unittests	62.37% <100.00%> (+0.02%)	⬆️

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Files with missing lines	Coverage Δ
hardware_interface/src/resource_manager.cpp	78.53% <100.00%> (+0.07%)	⬆️

... and 1 file with indirect coverage changes