image: cimg/ruby:2.7.4-node
error: curb(1.0.1) gem can't be installed with error message:
Can't find libcurl or curl/curl.h (RuntimeError)
Make sure development libs (ie libcurl4-openssl-dev) are installed on the
system.
Try passing --with-curl-dir or --with-curl-lib and --with-curl-include
options to extconf.
Then i tried to install libcurl4-openssl-dev as suggested, but it also can't be installed with error message:
Unable to locate package libcurl4-openssl-dev
So i've got no way.