fix(ci): Update Docker test image name to streamflix

.github/workflows/ci.yml

@@ -176,7 +176,7 @@ jobs:
         with:
           context: .
           push: false
-          tags: streamflow:test
+          tags: streamflix:test
           cache-from: type=gha
           cache-to: type=gha,mode=max
       
@@ -184,7 +184,7 @@ jobs:
         run: |
           docker run -d --name test -p 8000:8000 \
             -e STREAMFLIX_DEBUG=true \
-            streamflow:test
+            streamflix:test
           sleep 10
           curl -f http://localhost:8000/api/health || exit 1
           docker stop test