Currently Finders declares a dependency on php: 8.3 via its info file. We'd like this to work anywhere a supported version of D10 runs, which means supporting php 8.1 or better.
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That was possibly done for the typed class constants I'd put in, which I later removed.
Try it on PHP 8.1 and see what happens :)
Though honestly, PHP 8.1 is security releases only, and will be EOL in 10 months' time.