fix: allow Jira completion without loggable tracked time - #11

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, extractions/setup-just@dd310ad5a97d8e7b41793f8ef055398d51ad4de6. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/