Upgrade all Alpine packages at build time

[merlimat]

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[yuweisung]

should we use the latest tag?
currently, alpine latest -> 3.20 and 3.20.1

[merlimat]

should we use the latest tag? currently, alpine latest -> 3.20 and 3.20.1

We're already using 3.20, though doing the apk upgrade is needed to fetch the latest patched version of packages