Cleanup and grooming of CI (backport #343)

[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 #343 done by Mergify.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.63%. Comparing base (90a1b72) to head (c700c9b).

Additional details and impacted files

@@           Coverage Diff           @@
##           humble     #344   +/-   ##
=======================================
  Coverage   72.63%   72.63%           
=======================================
  Files          10       10           
  Lines         581      581           
  Branches      223      223           
=======================================
  Hits          422      422           
  Misses         96       96           
  Partials       63       63           

Flag	Coverage Δ
unittests	72.63% <ø> (ø)

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