Azure App Config: fix time format to time.duration #19065

Job	Run time
generate-matrix	3s
bindings.cron certification	3m 43s
bindings.dubbo certification	3m 59s
bindings.kafka certification	9m 2s
bindings.kitex certification	4m 3s
bindings.localstorage certification	2m 48s
bindings.postgres certification	4m 15s
bindings.rabbitmq certification	5m 57s
bindings.redis certification	4m 13s
configuration.postgres certification	4m 6s
configuration.redis certification	4m 23s
middleware.http.bearer certification	2m 49s
middleware.http.ratelimit certification	3m 52s
pubsub.kafka certification	8m 20s
pubsub.mqtt3 certification	5m 34s
pubsub.pulsar certification	13m 42s
pubsub.rabbitmq certification	6m 29s
secretstores.hashicorp.vault certification	8m 20s
secretstores.local.env certification	2m 48s
secretstores.local.file certification	3m 9s
state.cassandra certification	10m 42s
state.cockroachdb certification	5m 22s
state.memcached certification	4m 59s
state.mongodb certification	9m 38s
state.mysql certification	5m 8s
state.postgresql certification	3m 34s
state.redis certification	4m 37s
state.sqlite certification	3m 59s
Post-completion	2s
	2h 29m 36s

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