CD(R): fix extendr install #39
Description
The current CD pipeline for R fails due to extendr, I think it's becasue of extendr being removed from CRAN since 16/05: https://cran.r-project.org/web/packages/rextendr/index.html.
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The current CD pipeline for R fails due to extendr, I think it's becasue of extendr being removed from CRAN since 16/05: https://cran.r-project.org/web/packages/rextendr/index.html.