tic 0.7.0

Macros

• Add do_blogdown() macro (#242)

CI Provider specific

GitHub Actions

• use_tic(): Move cli::tree() calls to use_*_yml() functions to avoid printing of false-positive trees.
• use_*_yml(): Set defaults for argument type.
• Fix GHA build URL and prettify deploy message (#247)
• Adjust GH Actions templates to use the use_*_yml() logic (#246)
• Bugfix: Packages on R-devel macOS are being installed in parallel again.

R 4.0 toolchain

• GitHub Actions: R-devel on macOS now uses Apples default clang compiler and the 10.13 SDK (High Sierra) to mimic the CRAN toolchain behavior.
  (The 10.15 SKD causes various issues when installing packages from source.)
• Env var SDKROOT is now set to /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk to prevent linking issues on macOS >= 10.15.4