Update build-unix.md - add boost library

[jerzybrzoska]

libboost-all-dev is needed to compile on Debian stable (Bookworm).

[DrahtBot]

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[dergoegge]

The docs suggest to install or build boost one line below already:

bitcoin/doc/build-unix.md

Lines 49 to 51 in 651fb03

	Now, you can either build from self-compiled [depends](#dependencies) or install the required dependencies:
	sudo apt-get install libevent-dev libboost-dev

Does that not work for you?

[jerzybrzoska]

The docs suggest to install or build boost one line below already:

bitcoin/doc/build-unix.md

Lines 49 to 51 in 651fb03

	Now, you can either build from self-compiled [depends](#dependencies) or install the required dependencies:
	sudo apt-get install libevent-dev libboost-dev

Does that not work for you?

Yes it does.