Add trustProxyHeaders to the Angular app engine

Proprietary

Adds trustProxyHeaders: ['x-forwarded-host', 'x-forwarded-proto'] to new AngularNodeAppEngine() and new AngularAppEngine(). Angular 22 stopped trusting forwarded headers by default; the option restores the previous behavior and carries a TODO to remove it when the server does not sit behind a trusted proxy.

org.openrewrite.angular.migration.add-trust-proxy-headers
mod run . --recipe=org.openrewrite.angular.migration.add-trust-proxy-headers

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