Google Cloud Run producing `context deadline exceeded`

I'm trying to run `grpcurl` against an application deployed in Google Cloud Run. It constantly returns `context deadline exceeded`. The odd thing is that it works on my co-workers without a problem. I verified that the traceroutes and versions are the same.

```
❯ grpcurl -vv -plaintext -max-time 10 -H "Authorization: Bearer $(gcloud auth print-identity-token)" list
Failed to dial target host "": context deadline exceeded
❯ grpcurl -version
grpcurl 1.9.1
```

The `-vv` isn't producing any output at all and I don't see anything at all in the server logs so I'm baffled what could be doing this.

Start by reproducing the reported grpcurl 1.9.1 command against Google Cloud Run with the shown flags and compare it with the working coworker environment. The payload names no source files or tests, so completion would require isolating the cause of the timeout and documenting a reproducible diagnosis or resolution.

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