Failing build pipeline

[dnlkoch]

The build pipeline is currently failing, see e.g. here:

Run actions/setup-ruby@v1
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NOTE: This action is deprecated and is no longer maintained.
Please, migrate to https://github.com/ruby/setup-ruby, which is being actively maintained.
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Error: Version 2.[6](https://github.com/terrestris/BasiGX/actions/runs/4042246182/jobs/6949723574#step:8:7) not found

[geographika]

@dnlkoch - similar happened to GeoExt - see geoext/geoext#722