chore: reuse robot development server using overlayfs

[jooola]

• Install the robot server once a week. Use overlayfs to allow resetting the whole system with a reboot.
• Reboot (and reset) the robot server before starting the e2e tests.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.99%. Comparing base (8656812) to head (197d158).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #670      +/-   ##
==========================================
+ Coverage   71.89%   71.99%   +0.10%     
==========================================
  Files          32       31       -1     
  Lines        2658     2482     -176     
==========================================
- Hits         1911     1787     -124     
+ Misses        556      523      -33     
+ Partials      191      172      -19     

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[apricote]

Now included in #671.