fix: change APP_TRUST_PROXIES to APP_TRUSTED_PROXIES

[greg6775]

This pull request fixes the issue mentioned in #5954, which was wrongfully closed after the merge of #5955. It also fixes #6024

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🎉 This PR is included in version 4.0.0 🎉

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This pull request has been automatically locked since there
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Please open a new issue for related bugs.