ci: configure automation around dependency management

.github/auto-merge.yml

@@ -0,0 +1,6 @@
+minApprovals:
+  NONE: 0
+requiredLabels:
+  - dependencies
+updateBranch: true
+mergeMethod: rebase

.github/dependabot.yml

@@ -1,9 +1,10 @@
 version: 2
 updates:
-  # Enable version updates for npm
+  - package-ecosystem: npm
-  - package-ecosystem: 'npm'
+    directory: "/"
-    # Look for `package.json` and `lock` files in the `root` directory
-    directory: '/'
-    # Check the npm registry for updates every day (weekdays)
     schedule:
-      interval: 'daily'
+      interval: daily
+    commit-message:
+      prefix: fix
+      prefix-development: chore
+      include: scope