Add missing php extension requirements

icingaweb2.spec

@@ -122,6 +122,9 @@ Summary:                    Icinga Web 2 PHP library
 Group:                      Development/Libraries
 Requires:                   %{php_common} >= %{php_version}
 Requires:                   %{php}-gd %{php}-intl %{php}-mbstring
+%if 0%{?sle_version} >= 150200
+Requires:                   %{php}-dom %{php}-curl
+%endif
 %{?rhel:Requires:           %{php}-pdo %{php}-xml}
 %if 0%{?rhel} >= 8 || 0%{?fedora} >= 30
 Requires:                   %{php}-json