feat(mda): enable dovecot api access

Author: jeboehm

target/mda/rootfs/etc/dovecot/conf.d/10-common.conf

@@ -2,9 +2,11 @@ import_environment {
   POSTMASTER = %{env:POSTMASTER}
   MAILNAME = %{env:MAILNAME}
   MTA_SMTP_ADDRESS = %{env:MTA_SMTP_ADDRESS}
+  DOVEADM_API_KEY = %{env:DOVEADM_API_KEY}
 }
 
 protocols = imap lmtp sieve pop3
 postmaster_address = $ENV:POSTMASTER
 hostname = $ENV:MAILNAME
 submission_host = $ENV:MTA_SMTP_ADDRESS
+doveadm_api_key = $ENV:DOVEADM_API_KEY