[Rspamd, Web] Escape monitoring hosts, add regex maps to vars file

data/conf/rspamd/custom/monitoring_nolog.map

@@ -1,6 +1,6 @@
 # Skip logging for these addresses
-/monitoring-system@everycloudtech.us/i
-/monitor@tools.mailflowmonitoring.com/i
+/monitoring-system@everycloudtech\.us/i
+/monitor@tools\.mailflowmonitoring\.com/i
 /watchdog@localhost/i
-/supertool@mxtoolbox.com/i
-/test@mxtoolboxsmtpdiag.com/i
+/supertool@mxtoolbox\.com/i
+/test@mxtoolboxsmtpdiag\.com/i