chore(deps): update postgres docker tag to v14.14

[renovate]

This PR contains the following updates:

Package	Update	Change
postgres	minor	14.13-alpine -> 14.14-alpine

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[fit2cloudrd]

根据提供的信息，在此示例中没有发现与不规范或问题相关的代码变化。然而，为了提供更好的帮助和服务，请详细说明您希望实现的功能和对现有代码更改的需求细节。

例如：

如果您的需求是将环境变量设置从 POSTGRES_USER 更改为一个别名为 _YOUR_DB_ROOT_USER_ 的自定义标识符。您可以这样修改环境配置声明：

environment:
    - _YOUR_DB_ROOT_USER_=${PANEL_DB_ROOT_USER}

这种做法会更容易理解且在未来的扩展中有更高的灵活性，并且更符合团队开发的最佳实践（TDD，单元测试等）。