chore(deps): update ghcr.io/stacklok/dockyard/uvx/mcp-neo4j-cypher docker tag to v0.4.0

Author: renovate[bot]

registry/mcp-neo4j-cypher/spec.yaml

@@ -24,7 +24,7 @@ tags:
   - cypher
   - query
   - graph-database
-image: ghcr.io/stacklok/dockyard/uvx/mcp-neo4j-cypher:0.3.1
+image: ghcr.io/stacklok/dockyard/uvx/mcp-neo4j-cypher:0.4.0
 permissions:
   network:
     outbound: