Create dependabot.yml

Help keep the dev dependencies up to date.
https://dependabot.com/#how-it-works

Author: coliff

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+    time: '20:00'
+  open-pull-requests-limit: 10
+- package-ecosystem: bundler
+  directory: "/"
+  schedule:
+    interval: daily
+    time: '20:00'
+  open-pull-requests-limit: 10