Cannot add the Linux-distribution GPG key

[wattake]

The following command for installing kraft in the https://unikraft.org/docs/usage/install/ produces an error.

command

$ curl -fsSL https://releases.unikraft.org/linux/gpg

error

curl: (22) The requested URL returned error: 522

[Aayushmaan-24]

Attached a PR for the fix. Made the following changes:
549

Updated content/docs/cli/install.mdx

• Kept the working command using https://deb.pkg.kraftkit.sh/gpg.key
• Added a note that old instructions using https://releases.unikraft.org/linux/gpg fail with 522 and should be replaced

-Added redirect in next-redirect.js:

• '/docs/usage/install' -> '/docs/cli/install' (permanent), so old docs links land on the maintained install page

Verified behavior:

• Confirmed old URL returns HTTP 522
• Confirmed new key URL serves a valid PGP public key
• Confirmed redirect entry is present in code

Ran checks:

• pnpm lint passed (only pre-existing warnings in unrelated files)
• pnpm build failed with Bus error (core dumped); appears environment-related, not due to these changes