fix(keyring): bump keyring operation timeout from 3s to 60s

[hestad]

Problem

On macOS, zalando/go-keyring shells out to /usr/bin/security, which can trigger an interactive keychain prompt — for example when the cli.nais.io keychain item's ACL is set to require the keychain password per access (a common workstation-hardening setup), or after a Homebrew upgrade changes the binary so the ACL no longer matches.

internal/keyring/keyring.go wraps every keyring operation in a hardcoded 3-second timeout, so every authenticated command fails with

creating GraphQL client: get encryption key: timeout while trying to get secret from keyring

before the user can possibly type their password. The abandoned goroutine also orphans the security process, leaving a stale password prompt on screen after the CLI has exited.

Fix

Bump the timeout from 3s to 60s in Get, Set and Delete.

This mirrors upstream: the file is borrowed from cli/cli, which made the exact same change for the same reason in cli/cli@0ca080da ("Bump keyring operation timeout from 3s to 60s — the 3-second timeout doesn't leave enough time to respond to an interactive unlock prompt").

The timeout still guards against a genuinely hung keyring backend (the original motivation, cli/cli#7580); it just no longer races the user's typing speed.

Repro

1. In Keychain Access, set "Ask for keychain password" on the cli.nais.io item's access control.
2. Run any authenticated command, e.g. nais postgres proxy ….
3. Before this change: fails after 3s while the password prompt is still open. After: the prompt can be answered normally.