chore(addon): publish hotfix version 7.8.1 [skip ci]

Author: github-actions[bot]

homeassistant-addon/config.yaml

@@ -1,6 +1,6 @@
 name: "Home Assistant MCP Server"
 description: "AI assistant integration for Home Assistant via Model Context Protocol (MCP)"
-version: "7.8.0"
+version: "7.8.1"
 slug: "ha_mcp"
 url: "https://github.com/homeassistant-ai/ha-mcp"
 arch: