Bump actions/checkout from 3 to 4 in /.github/workflows

.github/dependabot.yml

@@ -0,0 +1,19 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/dyndns" # Location of package manifests
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "docker"
+    directory: "/deployment"
+    schedule:
+      interval: "daily"
+  - package-ecosystem: "github-actions"
+    directory: ".github/workflows"  
+    schedule:
+      interval: "daily"

.github/workflows/build.yml

@@ -8,7 +8,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Go
         uses: actions/setup-go@v4

.github/workflows/containers.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Prepare
         id: prep
         run: |