[Foundations > Address] Correct workchain_id size from 32 to 8

[VladasZ]

Here:
https://github.com/tact-lang/mintlify-ton-docs/blob/16d1c2b264aae88f6288804992539a0a0845aa40/ton/addresses/overview.mdx?plain=1#L89

And here:
https://github.com/tact-lang/mintlify-ton-docs/blob/16d1c2b264aae88f6288804992539a0a0845aa40/ton/addresses/formats.mdx?plain=1#L25

And maybe in some other places, I've found only these 2.