Adds zstd dependency for boost

[colindean]

Homebrew's boost 1.69 includes support for iostreams-mt, which establishes a dependency on zstd.

Fixes #39111

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#38890 takes boost to 1.70 but this problem is preventing use of at least one formula presently.

[scpeters]

Does this need a revision bump? I think the INSTALL_RECEIPT.json will be out of date if we don't rebuild the bottle, but I'm not sure if that's a big problem or not.

[scpeters]

This looks like a consequence of the boost bottle update from #38439.

Adding a dependency to boost has a big impact, so if there is an option to prevent the opportunistic linking, I think it may be worthwhile. If there is demand for this feature, that's one thing, but I'd rather it be an explicit choice than following the whims of opportunistic linking.

[scpeters]

FYI, I submitted my proposed alternative in #39117

[fxcoudert]

Let's avoid the opportunistic linkage rather than add a new dependency.