Fix for posit sysdeps lookup

See https://github.com/rstudio/r-system-requirements/blob/67682925bbc34d7fcf8c9bbcae55c34a69506ccf/rules/libcurl.json#L2

Author: jeroen

R/buildtools.R

@@ -256,6 +256,7 @@ sysdep_shortname <- function(x){
     'openjdk-11-jre-headless' = 'java',
     'libpng16-16' = 'libpng',
     'libtiff5' = 'libtiff',
+    'curl' = 'libcurl',
     sub('\\d+\\.\\d+$', "", x$source)
   )
 }