Merge branch 'renovate/github.com-chrj-smtpd-0.x' into 'master'

Update module chrj/smtpd to v0.2.0

See merge request !3

go.mod

@@ -3,7 +3,7 @@ module git.autistici.org/ai3/tools/reports-collector
 go 1.15
 
 require (
-	github.com/chrj/smtpd v0.1.2
+	github.com/chrj/smtpd v0.2.0
 	github.com/jhillyerd/enmime v0.8.3
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/oschwald/geoip2-golang v1.4.0