Source : https://www.plesk.com/kb/support/on-plesk-for-linux-server-curl-command-in-chrooted-shell-or-in-scheduled-task-fails-

Both for chrooted shell and scheduled tasks

Create directories for CA certificates in the chroot template:

mkdir -p /var/www/vhosts/chroot/etc/ssl/certs/
mkdir -p /var/www/vhosts/chroot/usr/share/ca-certificates/

Copy the CA certificates to those directories:

cp -a /etc/ssl/certs/* /var/www/vhosts/chroot/etc/ssl/certs/
cp -a /usr/share/ca-certificates/* /var/www/vhosts/chroot/usr/share/ca-certificates/

Update the chroot template by running below commands one by one:

curl -o update-chroot.sh https://raw.githubusercontent.com/plesk/kb-scripts/master/update-chroot/update-chroot.sh
chmod 700 update-chroot.sh
./update-chroot.sh --apply all

/etc/pki/tls/certs/ca-bundle.crt