use modern scala-cli syntax everywhere

[SethTisue]

(d766480 is actually necessary, or CI fails)

[bishabosha]

If we implement scala steward so far it only supports //> using lib as far as I am aware

[SethTisue]

If we implement scala steward so far it only supports //> using lib as far as I am aware

is there a ticket on that? using dep is considered standard.

[armanbilge]

• https://github.com/scala-steward-org/scala-steward/issues/3174

[szymon-rd]

Are we sure that the syntax in

//> using publish.developer adpi2|Adrien Piquerez|https://github.com/adpi2

will work? And not treat it as an enumeration of adpi2|Adrien, Piquerez|https://github.com/adpi2?

[SethTisue]

@szymon-rd oops. fixed