Remove pak workaround for older webR

Remove pak workaround for older webR

Update actions in deploy-cran-repo.yml

Use `ubuntu-22.04` in workflows

Use `ubuntu-22.04` in workflows

Update for new compressed `.tgz` package format

Add `compress` argument to GitHub Actions (#24)

Use GitHub action path in build-rwasm

Use GitHub action path in build-rwasm

Fix split strip conditional in code.R