Have dependabot update github actions (#12)

* The one with dependabot configs

* don't build on dependabot yaml

.github/dependabot.yml

@@ -0,0 +1,8 @@
+---
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/go.yml

@@ -1,14 +1,23 @@
+---
 name: Go
 
 on:
   push:
     branches: [ "main" ]
     tags:
-        - '*'
+      - '*'
   pull_request:
     branches: [ "main" ]
+    paths-ignore:
+      - '**/*.md'
+      - .github/dependabot.yml
   workflow_dispatch:
 
+concurrency:
+  # yamllint disable-line rule:line-length
+  group: ${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -163,4 +172,4 @@ jobs:
         upload_url: ${{ steps.create_release.outputs.upload_url }}
         asset_path: personalities.tar.gz
         asset_name: personalities.tar.gz
-        asset_content_type: application/gzip
+        asset_content_type: application/gzip