chore: add Dependabot settings (#837)

Some stuff and remove the annony addition of `dependencies` label.

.github/dependabot.yml

@@ -0,0 +1,24 @@
+# Versions and updates, dependabot.yml
+
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+  # Maintain dependencies for npm
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+      time: "02:00"
+    # No one cares about dependency labels, they should be auto-merged
+    labels: []
+    allow:
+      # Allow both direct and indirect updates for all packages
+      - dependency-type: "all"
+    rebase-strategy: "auto"
+    reviewers: ["node-formidable/core"]