build(dependabot): ignore minor and patch github-actions updates

.github/dependabot.yml

@@ -2,6 +2,10 @@ version: 2
 updates:
 - package-ecosystem: github-actions
   directory: '/'
+  ignore:
+      - dependency-name: 'actions/*'
+        update-types:
+            ['version-update:semver-minor', 'version-update:semver-patch']
   schedule:
     interval: daily
   open-pull-requests-limit: 10

.github/workflows/ci.yml

@@ -19,10 +19,10 @@ jobs:
 
     steps:
 
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v2
 
       - name: Use Node.js
-        uses: actions/setup-node@v2.5.0
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}