cirrus: Temporarily fix libcurl link error
On FreeBSD the ftp/curl port appears to be missing a minimum
version dependency on libssh2, so the following starts showing
up after upgrading to curl 8.11.1_1:
libcurl.so.4: Undefined symbol "libssh2_session_callback_set2"
Awaiting an upgrade of the FreeBSD CI images to version 14, work
around the issue.
Author: Jacob Champion <jacob.champion@enterprisedb.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Discussion: http://postgr.es/m/CAOYmi+kZAka0sdxCOBxsQc2ozEZGZKHWU_9nrPXg3sG1NJ-zJw@mail.gmail.com