What happened?

V6 breaks uploading behind proxy on self-hosted runner
after reverting to V5, it works

What did you expect to happen?

V6 shall use proxy settings

How can we reproduce it?

V6 https://github.com/Tencent/ncnn/actions/runs/20455804174/job/58778392875
reverted to V5 https://github.com/Tencent/ncnn/actions/runs/20456414421/job/58779448653

Anything else we need to know?

No response

What version of the action are you using?

2.330.0

What are your runner environments?

self-hosted

Are you on GitHub Enterprise Server? If so, what version?

No response