Try to reduce Renovate noise

[mariomac]

Try to reduce a bit the noise of Renovate (we can move back to something in between if we find that this approach does not work well):

• Run it once a week.
• Try to group all the patch changes into a single PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.57%. Comparing base (327e8c9) to head (897bd53).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #627      +/-   ##
==========================================
+ Coverage   61.25%   61.57%   +0.32%     
==========================================
  Files         199      199              
  Lines       22086    22086              
==========================================
+ Hits        13529    13600      +71     
+ Misses       7583     7517      -66     
+ Partials      974      969       -5     

Flag	Coverage Δ
integration-test-arm	34.57% <ø> (+0.16%)	⬆️
k8s-integration-test-1865-	?
k8s-integration-test-1866-	50.12% <ø> (?)
oats-test	37.14% <ø> (+0.35%)	⬆️

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