chore: update renovate config and bundle deps in groups

[arbreezy]

Closes #1008

📑 Description

Fixes the renovate config file and make the groups more visible,
I am adding 4 dependency groups "golang, k8s, prometheus and azure"; golang's and k8s' dep updates are quite often. This is the first iteration (with a valid renovate.conf file) to bundle our deps to avoid PR fatigue

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed

ℹ Additional Information

I ran it against renovate-config-validator and was happy

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.24%. Comparing base (5db4bc2) to head (58e078a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1026   +/-   ##
=======================================
  Coverage   67.24%   67.24%           
=======================================
  Files          30       30           
  Lines        2549     2549           
=======================================
  Hits         1714     1714           
  Misses        791      791           
  Partials       44       44           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.