Description:
actions/setup-go falls back to downloading from storage.googleapis.com/golang when the download from golang-versions does not succeed.

Anonymous access to this bucket is no longer allowed, causing 403s:

https://storage.googleapis.com/golang/go1.25.3.linux-amd64.tar.gz

Action version:
actions/setup-go@v4

Platform:

• Ubuntu
• macOS
• Windows

Runner type:

• Hosted
• Self-hosted

Tools version:
N/A

Repro steps:

1. Hit the rate limit to go-versions. Fall back to downloading from storage.googleapis.com/golang.
2. Receive 403

Expected behavior:
The fallback to download from Go directly should work.

Actual behavior:

API rate limit exceeded for <ip>. (But here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.)
Falling back to download directly from Go
Install from dist
Acquiring go1.25.3 from https://storage.googleapis.com/golang/go1.25.3.linux-amd64.tar.gz
Error: Failed to download version ^1.20.0: Error: Unexpected HTTP response: 403