Merge pull request syslog-ng#5132 from syslog-ng/revert-5054-disable_libesnmp_on_debian-testing_tests

dbld: re-enable smtp on debian-testing

Author: kovgeri01

dbld/build.manifest

@@ -30,7 +30,7 @@
 # libcriterion-dev is available starting with bullseye
 debian-bullseye		python3,nojava,notzdatalegacy
 debian-bookworm		python3,nojava,notzdatalegacy
-debian-testing		python3,nojava,nosmtp
+debian-testing		python3,nojava
 debian-sid		python3,nojava
 
 # on ubuntu, we start using Python3 at focal onwards.