feat: add max slice alloc size config

[brianshih1]

I introduced the defaultMaxSliceAllocSize config for security reasons, similar to Config.MaxByteSliceSize introduced in this PR.

I need a way to prevent the array decoder from consuming too much memory for my application, the defaultMaxSliceAllocSize is the limit for how much memory the arrayDecoder can allocate.

Let me know if you think I should just reuse MaxByteSliceSize instead of introducing a new config.

[nrwiersma]

I like the addition of the config option over reusing the existing one. 1 small comment.

[nrwiersma]

LGTM 🎉 Thanks for the contribution.