Added gcloud project name to upload_image.py (#2381)

### What

Somehow `upload_image.py` couldn't figure out the default project of my
`gcloud` setup. This PR hard-codes the project name in the script.

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [ ] ~~I've included a screenshot or gif (if applicable)~~ 

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PR Build Summary: https://build.rerun.io/pr/2381

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Docs preview: https://rerun.io/preview/47a7c7c/docs
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scripts/upload_image.py

@@ -47,7 +47,7 @@ def main() -> None:
     hash = content_hash(args.path)
     object_name = f"{hash}_{os.path.basename(args.path)}"
 
-    gcs = storage.Client()
+    gcs = storage.Client("rerun-open")
     bucket = gcs.bucket("rerun-static-img")
     destination = bucket.blob(object_name)
     destination.content_type, destination.content_encoding = mimetypes.guess_type(args.path)