Azure App Config: fix time format to time.duration #19066

Job	Run time
generate-matrix	4s
bindings.cron certification	3m 41s
bindings.dubbo certification	2m 53s
bindings.kafka certification	8m 58s
bindings.kitex certification	3m 28s
bindings.localstorage certification	2m 44s
bindings.postgres certification	4m 37s
bindings.rabbitmq certification	6m 9s
bindings.redis certification	4m 15s
configuration.postgres certification	4m 8s
configuration.redis certification	4m 36s
middleware.http.bearer certification	3m 13s
middleware.http.ratelimit certification	3m 39s
pubsub.kafka certification	8m 1s
pubsub.mqtt3 certification	5m 54s
pubsub.pulsar certification	13m 21s
pubsub.rabbitmq certification	6m 11s
secretstores.hashicorp.vault certification	6m 33s
secretstores.local.env certification	3m 18s
secretstores.local.file certification	2m 58s
state.cassandra certification	10m 36s
state.cockroachdb certification	4m 28s
state.memcached certification	4m 24s
state.mongodb certification	8m 55s
state.mysql certification	4m 19s
state.postgresql certification	4m 23s
state.redis certification	3m 40s
state.sqlite certification	3m 1s
Post-completion	2s
	2h 22m 29s

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