Documentation Update Request: Missing keyserver URLs in firewall rules cause upgrade failure

[DeepController]

Description

When performing a JetKVM upgrade behind a strict firewall configured only with the URLs listed in the official documentation (https://jetkvm.com/docs/networking/local-access), the upgrade fails due to timeouts when fetching GPG keys.

Error

[https://keys.openpgp.org/vks/v1/by-fingerprint/AF5A36A993D828FEFE7C18C2D1B9856C26A79E95: error fetching key: Get "https://keys.openpgp.org/vks/v1/by-fingerprint/AF5A36A993D828FEFE7C18C2D1B9856C26A79E95": dial tcp 195.201.47.43:443: i/o timeout https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xAF5A36A993D828FEFE7C18C2D1B9856C26A79E95: error fetching key: Get "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0xAF5A36A993D828FEFE7C18C2D1B9856C26A79E95": context deadline exceeded]

Suggestion / Expected Behavior

Please update the Networking documentation to explicitly include the required outbound endpoints for OTA updates, including but not limited to:

• keys.openpgp.org
• keyserver.ubuntu.com
• Any additional domains that may be required.

I can submit a PR if these 2 domains are the only ones required.

Thanks!