Update ScyllaDB version to 2025.3.4

[mflendrich]

Bumps ScyllaDB to the newest version.

Going forward, we should probably hook up Renovate to do this for us.

/kind cleanup
/priority important-longterm

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@mflendrich: 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
ci/prow/verify	0dd6ed6	link	true	/test verify

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[rzetelskik]

@mflendrich lgtm but you need to update the generated files