Extend heatup safety timer to 60min

Firmware/variants/1_75mm_MK3S-EINSy10a-E3Dv6full.h

@@ -138,7 +138,7 @@
 
 // Safety timer
 #define SAFETYTIMER
-#define DEFAULT_SAFETYTIMER_TIME_MINS 30
+#define DEFAULT_SAFETYTIMER_TIME_MINS 60
 #define FARM_DEFAULT_SAFETYTIMER_TIME_ms (45*60*1000ul)
 
 // Offline crash dumper