chore(deps): update docker.elastic.co/mcp/elasticsearch docker tag to v0.4.6 (#313)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

registry/elasticsearch/spec.yaml

@@ -31,7 +31,7 @@ tags:
   - observability
   - metrics
   - logs
-image: docker.elastic.co/mcp/elasticsearch:0.4.5
+image: docker.elastic.co/mcp/elasticsearch:0.4.6
 target_port: 8080
 permissions:
   network: