Bump kiwigrid k8s-sidecar to 1.24.6 version

[a-thaler]

Description
We did not update the sidecar version for a long time as we observed increased resource consumption.
I tried it once more and using the additional flag IGNORE_ALREADY_PROCESSED the consumption is very similar as before. The big advantage is that logs are now in JSON and the info logs are reduced to a minimum. As the resources are not getting processed constantly anymore but only on changes, the amount of logs is reduced heavily.

Changes proposed in this pull request:

• update to latest version 1.24.6
• add new flag which works from k8s 1.19 on, to process only changed resources

Related issue(s)

kyma-project/third-party-images#364

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[kyma-bot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[skhalash]

Let's convert it to a regular PR?

[kyma-bot]

@a-thaler: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kyma-governance	f2071e1	link	true	/test pull-kyma-governance

Full PR test history. Your PR dashboard.

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[a-thaler]

I updated to the final image, ready for review