build: upgrade github actions

.github/workflows/continuous-integration.yml

@@ -1,10 +1,10 @@
 name: Continuous Integration
 on:
   push:
-    branches:    
+    branches:
       - 'main'
   pull_request:
-    branches:    
+    branches:
       - 'main'
   workflow_dispatch:
     inputs:
@@ -25,7 +25,7 @@ on:
         type: string
   repository_dispatch:
     types: [build-and-deploy]
-        
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
@@ -34,14 +34,14 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           cache: 'npm'
           node-version-file: '.nvmrc'
       - run: npm ci
       - run: npm run build
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: github.ref == 'refs/heads/main'
         with:
           name: showcase
@@ -54,8 +54,8 @@ jobs:
     env:
       IMAGE_REPO: ghcr.io/${{ github.repository }}/showcase
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/download-artifact@v3
+      - uses: actions/checkout@v4
+      - uses: actions/download-artifact@v4
         with:
           name: showcase
           path: dist/