fix(umi): exclude unmapped reads from consensus calling - #1168

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683, coursier/cache-action@4e2615869d13561d626ed48655e1a39e5b192b3c, coursier/setup-action@039f736548afa5411c1382f40a5bd9c2d30e0383. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/