build: bump the github-actions group with 2 updates (#9)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
         run: composer install --no-progress --optimize-autoloader --prefer-dist --no-interaction
 
       - name: Upload vendor and composer.lock as artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: vendor-artifact
           path: |
@@ -56,7 +56,7 @@ jobs:
           tools: composer:2
 
       - name: Download vendor artifact from build
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: vendor-artifact
           path: .
@@ -81,7 +81,7 @@ jobs:
           tools: composer:2
 
       - name: Download vendor artifact from build
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: vendor-artifact
           path: .