ci: run scheduled builds 4 hours earlier

Let's kick these off in the middle of my night so they should be done by the
time I'm awake. I'm tired of having these running jobs delay my CI during
the middle of the day.

Author: indygreg

.github/workflows/apple.yml

@@ -2,7 +2,7 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '13 15 * * *'
+    - cron: '13 11 * * *'
 jobs:
   # We need to build our own sccache until e6326bc8a20ee06af37e16a3a7a14e3374c66c66
   # is in a released version.

.github/workflows/linux.yml

@@ -2,7 +2,7 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '13 15 * * *'
+    - cron: '13 11 * * *'
 jobs:
   # We need to build our own sccache until e6326bc8a20ee06af37e16a3a7a14e3374c66c66
   # is in a released version.

.github/workflows/windows.yml

@@ -2,7 +2,7 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '13 15 * * *'
+    - cron: '13 11 * * *'
 jobs:
   pythonbuild:
     runs-on: 'windows-2019'