[EOL] Drop Foxy

[moriarty]

• Foxy now past EOL date of May 2023
• Similar to [EOL] Foxy & Galactic ros2_control#1044
• related to Foxy is now EOL ros2/ros2_documentation#3700

[codecov-commenter]

Codecov Report

Merging #641 (74088db) into master (e7f9962) will increase coverage by 0.70%.
The diff coverage is 34.80%.

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@@            Coverage Diff             @@
##           master     #641      +/-   ##
==========================================
+ Coverage   35.78%   36.48%   +0.70%     
==========================================
  Files         189        7     -182     
  Lines       17570      677   -16893     
  Branches    11592      358   -11234     
==========================================
- Hits         6287      247    -6040     
+ Misses        994      134     -860     
+ Partials    10289      296    -9993     

Flag	Coverage Δ
unittests	36.48% <34.80%> (+0.70%)	⬆️

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

Impacted Files	Coverage Δ
...ontroller/test/test_load_diff_drive_controller.cpp	11.11% <0.00%> (ø)
diff_drive_controller/src/odometry.cpp	42.16% <11.11%> (ø)
diff_drive_controller/src/speed_limiter.cpp	46.55% <11.11%> (ø)
...ive_controller/test/test_diff_drive_controller.cpp	17.62% <12.08%> (ø)
...iff_drive_controller/src/diff_drive_controller.cpp	46.93% <46.66%> (ø)
...de/diff_drive_controller/diff_drive_controller.hpp	100.00% <100.00%> (ø)
...troller/include/diff_drive_controller/odometry.hpp	100.00% <100.00%> (ø)

... and 189 files with indirect coverage changes

[christophfroehlich]

LGTM

[christophfroehlich]

Also related to ros-controls/control.ros.org#101 ;)

[destogl]

Thanks!