chore(main): release 6.0.0

[nodejs-github-bot]

🤖 I have created a release beep boop

6.0.0 (2025-12-11)

⚠ BREAKING CHANGES

• drop Node.js 18.x from supported engines (#988)

Features

• git-node: enhance remote configuration error message (#965) (ea17768)
• git-node: verify tag with official keyring (#989) (48a418b)
• ncu-config: add support for partially encrypted config files (#1004) (7342aff)

Bug Fixes

• git-node: clarify remote configuration error message (#1001) (8746db3)
• git-node: harmonize time left error messages (#1007) (d5a488f)
• git-node: include full URL in suggested gh command (#1002) (caee3c5)
• ncu-config: do not override encrypted values silently (#1006) (5d72b3e)
• remove stack traces from non-debug output (#990) (687217f)
• spawning of gpg to read config (#991) (100c694)

Miscellaneous Chores

• drop Node.js 18.x from supported engines (#988) (f8371dd)

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This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.58%. Comparing base (d5a488f) to head (d7da3c8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #992   +/-   ##
=======================================
  Coverage   80.58%   80.58%           
=======================================
  Files          39       39           
  Lines        4754     4754           
=======================================
  Hits         3831     3831           
  Misses        923      923           

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[aduh95]

This shouldn't land without #1006