Create Dependabot config file

dependabot-preview[bot] · jbr · commit 5826b882afe2 · 2020-08-25T19:10:54.000-07:00
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -0,0 +1,8 @@
+version: 2
+updates:
+- package-ecosystem: cargo
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "13:00"
+  open-pull-requests-limit: 10
