There’s some good info out there from the good people that know how things should work that created the reuse tool - https://reuse.software/ - and basically the conclusion is that nobody should be updating the years on the copyright line just because it’s a new year. The only useful info and what should be done is put the year when the file is created and that’s it.
Edit: took me a while to find the proper thing I wanted to link - https://matija.suklje.name/how-and-why-to-properly-write-copyright-statements-in-your-code
Had to go first to the recent curl blog where the author wants to go the weird way of not having useful info at all on the files.
And we’ll get laid off anyways either it’s useful or not.