chore(api-deps): update alchemist to v42.3.8 (patch)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
it.unibo.alchemist:alchemist-ui-tooling	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-maps	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-loading	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-incarnation-protelis	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-implementationbase	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-euclidean-geometry	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-engine	42.3.4 -> 42.3.8
it.unibo.alchemist:alchemist-api	42.3.4 -> 42.3.8

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