Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,54 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+  versioning-strategy: increase
+  ignore:
+  - dependency-name: "@types/node"
+    versions:
+    - "> 10.0.3"
+  - dependency-name: y18n
+    versions:
+    - 4.0.1
+    - 4.0.2
+  - dependency-name: typedoc
+    versions:
+    - 0.16.11
+    - 0.20.28
+    - 0.20.29
+    - 0.20.30
+    - 0.20.32
+    - 0.20.33
+    - 0.20.34
+    - 0.20.35
+  - dependency-name: mocha
+    versions:
+    - 8.2.1
+    - 8.3.0
+    - 8.3.1
+  - dependency-name: typescript
+    versions:
+    - 4.1.3
+    - 4.1.4
+    - 4.1.5
+    - 4.2.2
+    - 4.2.3
+  - dependency-name: cac
+    versions:
+    - 6.7.1
+    - 6.7.2
+  - dependency-name: tslib
+    versions:
+    - 2.1.0
+  - dependency-name: lodash
+    versions:
+    - 4.17.20
+  - dependency-name: lerna
+    versions:
+    - 3.22.1
+  - dependency-name: handlebars
+    versions:
+    - 4.7.6