Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,30 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "08:00"
+    timezone: Australia/Sydney
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: y18n
+    versions:
+    - 4.0.1
+  - dependency-name: mocha
+    versions:
+    - 8.2.1
+    - 8.3.0
+    - 8.3.1
+  - dependency-name: chai
+    versions:
+    - 4.3.0
+    - 4.3.1
+    - 4.3.3
+  - dependency-name: bson
+    versions:
+    - 4.2.2
+    - 4.2.3
+  - dependency-name: lodash
+    versions:
+    - 4.17.20