upload result artifact

Author: Frosty2500

.github/workflows/ci.yml

@@ -381,10 +381,12 @@ jobs:
             http://localhost:8081/api/v3.0 \
             https://admin-shell.io/aas/API/3/0/AssetAdministrationShellRepositoryServiceSpecification/SSP-002 \
             --output html > result.html
-      - name: Show test results
+      - name: Upload test results as artifact
         if: always()
-        run: |
-          cat result.html
+        uses: actions/upload-artifact@v4
+        with:
+          name: aas-test-results
+          path: result.html
       - name: Stop and remove the container
         if: always()
         run: |