Fix metrics port mismatch between svc and deployment in broker manifests

[antoineco]

Proposed Changes

• Fix metrics port mismatch between svc and deployment in broker manifests

It isn't clear from the manifests whether 9090 or 9092 is preferred, but the correct port is 9092:

eventing/cmd/mtbroker/filter/main.go

Lines 48 to 51 in af99921

	const (
	defaultMetricsPort = 9092
	component = "mt_broker_filter"
	)

See also #3181

[antoineco]

Corresponding Service:

eventing/config/brokers/mt-channel-broker/deployments/broker-filter.yaml

Lines 98 to 106 in 036711d

	ports:
	- name: http
	port: 80
	protocol: TCP
	targetPort: 8080
	- name: http-metrics
	port: 9092
	protocol: TCP
	targetPort: 9092

[antoineco]

Corresponding Service:

eventing/config/brokers/mt-channel-broker/deployments/broker-ingress.yaml

Lines 98 to 106 in 036711d

	ports:
	- name: http
	port: 80
	protocol: TCP
	targetPort: 8080
	- name: http-metrics
	port: 9092
	protocol: TCP
	targetPort: 9092

[aliok]

/lgtm
/approve

Looks good, thanks @antoineco

[pierDipi]

/lgtm

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