refactor: Update CI workflow, improve PHP version handling, and refactor code for clarity.

Author: gustavofreze

.github/workflows/ci.yml

@@ -57,7 +57,7 @@ jobs:
           tools: composer:2
 
       - name: Download vendor artifact from build
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@v6
         with:
           name: vendor-artifact
           path: .
@@ -82,7 +82,7 @@ jobs:
           tools: composer:2
 
       - name: Download vendor artifact from build
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@v6
         with:
           name: vendor-artifact
           path: .