chore: add renovate config

[ksimon1]

What this PR does / why we need it: Add renovate configuration, which updates main and release branches. release branches are configure to have only security patches.

This config was tested on: https://github.com/ksimon1/ssp-operator/pulls Release note:

NONE

[kubevirt-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[ksimon1]

/hold we need to wait until the repo is onboarded to renovate

[ksimon1]

/cc @akrejcir

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[kubevirt-bot]

PR needs rebase.

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