chore(deps): update ghcr.io/open-feature/sync-testbed-unstable docker tag to v0.5.5

Author: renovate[bot]

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
           - 9090:9090
       # sync-testbed for flagd in-process provider reconnect e2e tests
       sync-unstable:
-        image: ghcr.io/open-feature/sync-testbed-unstable:v0.5.4
+        image: ghcr.io/open-feature/sync-testbed-unstable:v0.5.5
         ports:
           - 9091:9090
 

providers/flagd/docker-compose.yaml

@@ -12,6 +12,6 @@ services:
     ports:
       - 9090:9090
   flagd-sync-unstable:
-    image: ghcr.io/open-feature/sync-testbed-unstable:v0.5.4
+    image: ghcr.io/open-feature/sync-testbed-unstable:v0.5.5
     ports:
       - 9091:9090