[Github actions] Updated actions

[steel97]

Fixes deprecation notices

[ohcee]

utAck. Thanks for updating this.

[seanPhill]

For the information of visitors, this relates to Github's changes described here:
https://github.blog/news-insights/product-news/get-started-with-v4-of-github-actions-artifacts/

And for those distracted by the spelling, … artifacts in US English == artefacts in proper English! ;)

Here are the deprecation notices more completely: Two deprecations on Node.js and one on the artifact actions.

Create Source Distribution
The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Create Source Distribution
The following actions uses Node.js version which is deprecated and will be forced to run on node20: actions/checkout@v2. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

Deprecation notice: v1, v2, and v3 of the artifact actions
The following artifacts were uploaded using a version of actions/upload-artifact that is scheduled for deprecation: