feat(http): expose proxy configuration

[cijiugechu]

The fetch method now exposes a proxy field to allow users to configure the proxy for the reqwest client.
Related issues from original repository:

• [feat] Proxy support in fetch function in tauri's http API
• [feat] How to set proxy settings for the webview

Closes tauri-apps/tauri#6467

[time-river]

I find wry has been support proxy, therefore I write a simple patch to support it, it's my pull:

• feat(wry): support proxy in wry runtime.

Can we merge them to one request?

[cijiugechu]

I find wry has been support proxy, therefore I write a simple patch to support it, it's my pull:

• feat(wry): support proxy in wry runtime.

Can we merge them to one request?

It seems these two PRs have different use cases, possibly need to let maintainers make the decision.

[FabianLars]

Yeah, 2 different use cases, implementations/targets and repositories. Nothing to merge here :)

Edit: What i meant with that last part is that these 2 PRs should stay seperate and both will be merged into their respective repos.

[amrbashir]

Thank you