chore: Improve crates.io download stability

[comphead]

Describe the bug

Sometimes build failed with

warning: spurious network error (3 tries remaining): [7] Could not connect to server (Failed to connect to index.crates.io port 443 after 4002 ms: Could not connect to server)

One proposal is to increase number of attempts another is to specify crates mirror like

[source.crates-io]
index = "https://github.com/rust-lang/crates.io-index" # I set the source to the official github index

Steps to reproduce

No response

Expected behavior

No response

Additional context

No response