Upgrade to GitHub-native Dependabot

Author: dependabot-preview[bot]

.github/dependabot.yml

@@ -0,0 +1,31 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: monthly
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: enzyme-adapter-react-16
+    versions:
+    - 1.15.6
+  - dependency-name: react-tooltip
+    versions:
+    - 4.2.15
+  - dependency-name: html-webpack-plugin
+    versions:
+    - 4.5.1
+    - 5.2.0
+  - dependency-name: react-select
+    versions:
+    - 4.0.2
+    - 4.1.0
+  - dependency-name: react-app-rewired
+    versions:
+    - 2.1.8
+  - dependency-name: marked
+    versions:
+    - 1.2.8
+  - dependency-name: react-scripts
+    versions:
+    - 4.0.1