Cleanup and grooming of CI (backport #143)

[mergify]

• Remove pre-release job (from ROS 1 days)
• Change schedules to run on weekdays only
• Rename debian jobs to semi-binary, which they are after merging Debian: Use release packages instead of development version ros2_control_ci#337
• Rename jobs to be consistent withing ros-controls

  ---

  This is an automatic backport of pull request Cleanup and grooming of CI #143 done by Mergify.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.20%. Comparing base (da24d02) to head (5af3523).
Report is 1 commits behind head on jazzy.

Additional details and impacted files

@@           Coverage Diff           @@
##            jazzy     #145   +/-   ##
=======================================
  Coverage   88.20%   88.20%           
=======================================
  Files           4        4           
  Lines         229      229           
  Branches       43       43           
=======================================
  Hits          202      202           
  Misses         15       15           
  Partials       12       12           

Flag	Coverage Δ
unittests	88.20% <ø> (ø)

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