Increase default sleep_tolerance from 1e-4 to 1e-3.

PiperOrigin-RevId: 945696845
Change-Id: I77caa0b6c0966da986451ff9eee5aecaf4e30106

src/engine/engine_init.c

@@ -63,7 +63,7 @@ void mj_defaultOption(mjOption* opt) {
   opt->ccd_tolerance      = 1e-6;
 
   // sleep settings
-  opt->sleep_tolerance    = 1e-4;
+  opt->sleep_tolerance    = 1e-3;
 
   // physical constants
   opt->gravity[0]         = 0;