Azure CI: temporarily add libldap_r.so symlink for python-ldap PIP use

Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
Reviewed-By: Florence Blanc-Renaud <frenaud@redhat.com>

ipatests/azure/templates/prepare-tox-fedora.yml

@@ -2,5 +2,6 @@ steps:
 - script: |
     set -e
     sudo dnf -y install nss-tools python3-pip git
+    sudo ln -s /usr/lib64/libldap.so /usr/lib64/libldap_r.so
     python3 -m pip install --user --upgrade pip setuptools pycodestyle
   displayName: Install Tox prerequisites