[CI] Add PHP logs

Author: GSadee

.github/workflows/build.yaml

@@ -288,3 +288,14 @@ jobs:
                     if-no-files-found: ignore
                     compression-level: 6
                     overwrite: true
+
+            -
+                name: Upload PHP logs
+                uses: actions/upload-artifact@v4
+                if: failure()
+                with:
+                    name: "PHP logs - ${{ matrix.sylius }}-${{ github.run_id }}-${{ github.run_number }}"
+                    path: /var/log/
+                    if-no-files-found: ignore
+                    compression-level: 6
+                    overwrite: true