Update publish action versions (#114)

Author: mattrunyon

.github/workflows/build-ci.yml

@@ -2,21 +2,21 @@ name: Build CI
 
 on:
   push:
-    branches: [ 'main' ]
-    tags: [ 'v*' ]
+    branches: ["main"]
+    tags: ["v*"]
   pull_request:
-    branches: [ 'main' ]
+    branches: ["main"]
 
-jobs:  
+jobs:
   examples:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v5
 
       - name: Docker meta
         id: docker_meta
-        uses: docker/metadata-action@v3.3.0
+        uses: docker/metadata-action@v5.8.0
         with:
           images: ghcr.io/${{ github.repository_owner }}/examples
           labels: |
@@ -32,14 +32,14 @@ jobs:
 
       - name: Login to ghcr.io
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v1.9.0
+        uses: docker/login-action@v3.5.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Docker build
-        uses: docker/build-push-action@v2.5.0
+        uses: docker/build-push-action@v6.18.0
         with:
           context: ./docker/
           tags: ${{ steps.docker_meta.outputs.tags }}