Use fake-timers v10.1.0 re-released as v10.3.0

Version 10.2.0 of fake-timers had an unexpected breaking
change. We re-released 10.1.0 as 10.3.0 to force users
into jumping over the deprecated version.

v10.2.0 was re-released as v11.0.0 and will be part of
the next Sinon major

package.json

@@ -74,7 +74,7 @@
   },
   "dependencies": {
     "@sinonjs/commons": "^3.0.0",
-    "@sinonjs/fake-timers": "^10.1.0",
+    "@sinonjs/fake-timers": "^10.3.0",
     "@sinonjs/samsam": "^8.0.0",
     "diff": "^5.1.0",
     "nise": "^5.1.4",