Custom scheme for docker image "checkmk"

[seraphblade2010]

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CheckMK uses the following scheme for their docker-images: 2.3.0p1
Broken down into major, minor and patch:

• 2 -> Major
• 3 -> Minor
• pX -> patch

Currently when renovate-bot opens a PR for checkmk it want to "upgrade" to 2.3.0, which would be a downgrade to 2.3.0p1.
How can I configure renovate-bot to correctly display the next version?

Thanks for any help ^^

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[rarkins]

Duplicate of #31825