pak update from CRAN

[gaborcsardi]

Dear maintainer,

Please see the problems shown on
<https://cran.r-project.org/web/checks/check_results_pak.html>.

Please correct before 2025-01-18 to safely retain your package on CRAN.

Best wishes,
The CRAN Team

This is about the installation error for
r-devel-linux-x86_64-debian-clang which I can reproduce locally.
Apparently first seen around 2024-11-19, not sure what changed then.

...
installing to /home/hornik/tmp/R.check/r-devel-clang/Work/build/Packages/00LOCK-pak/00new/pak/library/curl/libs
Error in source("tools/option_table.txt", env) : 
  tools/option_table.txt:23:20: unexpected input
22:   CURLOPT_HTTPHEADER = 10000 + 23
23:   CURLOPT_HTTPPOST _
                       ^
Error: unable to load R code in package ‘curl’
Execution halted
ERROR: lazy loading failed for package ‘curl’
Error in install_one(pkg, lib = lib) : FAILED
Calls: install_embedded_main -> install_all -> install_one
Execution halted
...

[gaborcsardi]

This should be already fixed in 9eb0439, where I manually remove the deprecated attributes from the entries in curl/curl.h.