Upgrade to GitHub-native Dependabot

.github/dependabot.yml

@@ -0,0 +1,53 @@
+version: 2
+updates:
+- package-ecosystem: npm
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: core-js
+    versions:
+    - 3.10.0
+    - 3.10.1
+    - 3.10.2
+    - 3.11.0
+    - 3.9.0
+    - 3.9.1
+  - dependency-name: eslint-config-prettier
+    versions:
+    - 8.0.0
+    - 8.1.0
+    - 8.2.0
+  - dependency-name: eslint
+    versions:
+    - 7.21.0
+    - 7.22.0
+    - 7.23.0
+    - 7.24.0
+  - dependency-name: ts-jest
+    versions:
+    - 26.5.2
+    - 26.5.3
+    - 26.5.4
+  - dependency-name: "@nuxt/types"
+    versions:
+    - 2.15.1
+    - 2.15.2
+    - 2.15.3
+  - dependency-name: nuxt
+    versions:
+    - 2.15.1
+    - 2.15.2
+    - 2.15.3
+  - dependency-name: stylelint
+    versions:
+    - 13.11.0
+    - 13.12.0
+  - dependency-name: "@nuxt/typescript-runtime"
+    versions:
+    - 2.0.2
+  - dependency-name: "@nuxt/typescript-build"
+    versions:
+    - 2.0.5
+    - 2.0.6