Silicon Language Fix (shiptest-ss13#2807)

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## About The Pull Request
Resolves shiptest-ss13#2651, allowing
silicons to now understand Rachnidian and Calcic but not speak it.
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## Why It's Good For The Game
Bugs bad
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## Changelog

:cl:
fix: silicons have had their language software patched, now capable of
understanding rachnidian and calcic at the cost of no longer being able
to speak it
/:cl:

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code/modules/language/language_holder.dm

@@ -306,13 +306,13 @@ Key procs
 								/datum/language/machine = list(LANGUAGE_ATOM),
 								/datum/language/draconic = list(LANGUAGE_ATOM),
 								/datum/language/moffic = list(LANGUAGE_ATOM),
+								/datum/language/calcic = list(LANGUAGE_ATOM),
+								/datum/language/spider = list(LANGUAGE_ATOM),
 								/datum/language/teceti_unified = list(LANGUAGE_ATOM))
 	spoken_languages = list(/datum/language/common = list(LANGUAGE_ATOM),
 							/datum/language/machine = list(LANGUAGE_ATOM),
 							/datum/language/draconic = list(LANGUAGE_ATOM),
 							/datum/language/moffic = list(LANGUAGE_ATOM),
-							/datum/language/calcic = list(LANGUAGE_ATOM),
-							/datum/language/spider = list(LANGUAGE_ATOM),
 							/datum/language/teceti_unified = list(LANGUAGE_ATOM))
 
 /datum/language_holder/ipc