Add two missing receiver types

cli/receivers.go

@@ -28,13 +28,15 @@ import (
 	"github.com/prometheus/alertmanager/notify"
 	"github.com/prometheus/alertmanager/notify/discord"
 	"github.com/prometheus/alertmanager/notify/email"
+	"github.com/prometheus/alertmanager/notify/msteams"
 	"github.com/prometheus/alertmanager/notify/opsgenie"
 	"github.com/prometheus/alertmanager/notify/pagerduty"
 	"github.com/prometheus/alertmanager/notify/pushover"
 	"github.com/prometheus/alertmanager/notify/slack"
 	"github.com/prometheus/alertmanager/notify/sns"
 	"github.com/prometheus/alertmanager/notify/telegram"
 	"github.com/prometheus/alertmanager/notify/victorops"
+	"github.com/prometheus/alertmanager/notify/webex"
 	"github.com/prometheus/alertmanager/notify/webhook"
 	"github.com/prometheus/alertmanager/notify/wechat"
 	"github.com/prometheus/alertmanager/template"
@@ -302,6 +304,12 @@ func buildReceiverIntegrations(nc config.Receiver, tmpl *template.Template, logg
 	for i, c := range nc.DiscordConfigs {
 		add("discord", i, c, func(l log.Logger) (notify.Notifier, error) { return discord.New(c, tmpl, l) })
 	}
+	for i, c := range nc.WebexConfigs {
+		add("webex", i, c, func(l log.Logger) (notify.Notifier, error) { return webex.New(c, tmpl, l) })
+	}
+	for i, c := range nc.MSTeamsConfigs {
+		add("msteams", i, c, func(l log.Logger) (notify.Notifier, error) { return msteams.New(c, tmpl, l) })
+	}
 
 	return integrations
 }