Update all appropriate package.json files in the repo to reflect a minimum Node engines version of 18.

Exceptions:

Unpublished packages that only serve as entry points. e.g. auth/cordova, or firebase/compat/storage (the actual published package is @firebase/storage-compat).
Types packages - FYI these are leftover from compat - all modular code should be using types within their own package.
Auth demo apps - these are demo apps for auth testing and should be maintained by auth to the specification they want them at
Packages that shouldn't be used in Node at all (Analytics, Installations, Messaging, Performance, Remote Config, Webchannel-wrapper)
The template packages

Notes:

Internal packages like component, logger, and util should be platform agnostic, but this enables us to introduce any new APIs (e.g., new cryptography API) that old versions of Node don't support, if we need to in the future
18 isn't necessarily the exact minimum for many of our internal tools, many of which can handle much older versions of Node, but our CI runs on 18 anyway.

See https://docs.google.com/spreadsheets/d/1TpQleZQiw1AW_E_CQE12mfW0cRNLvwIB03hDsfop7f8/edit?gid=0&resourcekey=0-k7oyij2BtGpazx4_2cexuA#gid=0 (internal link) for a breakdown of exactly which packages were included or excluded and some notes as to why.

Aug 23 '24 21:08 hsubox76

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Latest commit: 40481b5b1c474743242aa6b9e332419ee2426a74

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