add dependabot config

Author: bastelfreak

.github/dependabot.yml

@@ -0,0 +1,17 @@
+version: 2
+updates:
+# raise PRs for gem updates
+- package-ecosystem: bundler
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "13:00"
+  open-pull-requests-limit: 10
+
+# Maintain dependencies for GitHub Actions
+- package-ecosystem: github-actions
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "13:00"
+  open-pull-requests-limit: 10

.github/workflows/test.yml

@@ -18,7 +18,7 @@ jobs:
           - ruby: "3.0"
           - ruby: "3.1"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Install Ruby ${{ matrix.ruby }}
         uses: ruby/setup-ruby@v1
         with: