build(deps): bump actions/checkout from 3 to 7 - #113

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

Unexpected input(s) 'run', valid inputs are ['toolchain', 'targets', 'target', 'components']