Dependabot integration (#521)

Author: mirzakaracic

.github/dependabot.yml

@@ -0,0 +1,28 @@
+version: 2
+updates:
+  # Go modules dependencies
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    target-branch: "stage"
+    allow:
+      - dependency-type: "all"
+    commit-message:
+      prefix: "chore(deps)"
+    labels:
+      - "dependencies"
+      - "core"
+    open-pull-requests-limit: 10
+
+  # GitHub Actions dependencies
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    target-branch: "stage"
+    labels:
+      - "ci"
+      - "dependencies"
+    commit-message:
+      prefix: "ci(deps)"