[feat] Enhance Proxy Registration and Prevent Memory Leak

[alissn]

Hi,

In this pull request, I've updated the registration of proxies to preserve user-defined settings in the bootstrap/app.php file.

In the previous version, when custom proxies were defined, they were ignored. The trustProxies method stored its values in the static variable $alwaysTrustProxies and not read form this package middleware.

->trustProxies(at: [
        '92.1.1.1',
     ])

Additionally, before merging values, I ensured that unique proxies are maintained to prevent memory leaks when using the Laravel Octane package.