Use rustg 1.2.0+a2 (from our other repo), update our pipeline, fix what's needed to not make it fail (#16051)

* Let's see how this goes, updated the versions of various dependencies

* Changelog

* Didn't we merge a fix for those already? Anyways...

* Almost...

* Switch flyway to 9.9.0 instead

* Forgot one place where this is doubly defined

* Package dependency attempt fix

* Try to run on latest ubuntu version

* Forgot one

* Try to force cffi consistency

* Other way around

* aurora was a mistake

* Like this more?

* Stupid pipeline

* F

* FF

* Bruh ZAS

* GDI

* FFS ZAS + UT

* Checked maps, temp is set as this in there, so updating ZAS UT, wich was probably conked before

* All AI rooms are in normal expectation, so updating ZAS UT for it

* First attempt at making the AI area in the Horizon cooled

* F

* And the old aurora

* Remove version binding on requirements

* Updated changelog

* Spelling

* Binds versions again, as majority voted

code/modules/mob/living/say.dm

@@ -112,6 +112,8 @@ proc/get_radio_key_from_channel(var/channel)
 				Weaken(3)
 			if(11 to 60)
 				to_chat(src, SPAN_WARNING("You struggle to speak with your dislocated jaw!"))
+			else
+				. = null //This does nothing, it's to avoid a dreamchecker error
 		. = TRUE
 	else if(stuttering)
 		message = get_stuttered_message(message)

code/modules/mob/mob_helpers.dm

@@ -384,9 +384,14 @@ proc/slur(phrase, strength = 100)
 				if(lowertext(newletter)=="a")	newletter="ah"
 				if(lowertext(newletter)=="c")	newletter="k"
 			switch(rand(1,15))
-				if(1,3,5,8)	newletter="[lowertext(newletter)]"
-				if(2,4,6,15)	newletter="[uppertext(newletter)]"
-				if(7)	newletter+="'"
+				if(1,3,5,8)
+					newletter="[lowertext(newletter)]"
+				if(2,4,6,15)
+					newletter="[uppertext(newletter)]"
+				if(7)
+					newletter+="'"
+				else
+					. = null // For dreamchecker, does nothing
 		newphrase+="[newletter]";counter-=1
 	return newphrase