feat(pubsub): enable project autodetection and detect empty project #8168
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Allows autodetection of project ID when the sentinel value (DetectProjectID) is passed in to
pubsub.NewClient
. This uses thedetect
, similar to BigQuery in #4312. Similar to Firestore in #4299, empty project IDs will now return an error.Also exposes a new method in pubsub client
client.Project()
which returns the project ID.Retrieving information about the topic's (and subscription) project ID can be done by
topic.Config
, followed by callingconfig.String()
.Addresses pubsub portion in #1294
Fixes #3828