cmd/gitmirror: push to prod namespace

Overlooked this -- the set-image command doesn't use a YAML file so
needs to specify the namespace explicitly.

Change-Id: I3602dbb31afc27df6087207b57b081975024021d
Reviewed-on: https://go-review.googlesource.com/c/build/+/347411
Trust: Heschi Kreinick <[email protected]>
Run-TryBot: Heschi Kreinick <[email protected]>
TryBot-Result: Go Bot <[email protected]>
Reviewed-by: Dmitri Shuralyov <[email protected]>

Author: heschi

cmd/gitmirror/Makefile

@@ -23,8 +23,8 @@ push-staging: docker-staging
 	docker push $(IMAGE_STAGING):$(VERSION)
 
 deploy-prod: push-prod
-	kubectl set image deployment/gitmirror-serving-deployment gitmirror=$(IMAGE_PROD):$(VERSION)
-	kubectl set image deployment/gitmirror-mirroring-deployment gitmirror=$(IMAGE_PROD):$(VERSION)
+	kubectl set image --namespace=prod deployment/gitmirror-serving-deployment gitmirror=$(IMAGE_PROD):$(VERSION)
+	kubectl set image --namespace=prod deployment/gitmirror-mirroring-deployment gitmirror=$(IMAGE_PROD):$(VERSION)
 
 deploy-staging: push-staging
 	echo "no staging configuration"