fix(tauri-build): allow user to specify win sdk path (fix: #2871)

[SyntaxRules]

This fixes #2871 by allowing users to pass in the sdk_path (windows only) when it can otherwise not be found.

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Docs
• New Binding Issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:
  This is a fix because I need this to get the builds to work on my machine. Some may consider this a new feature that allows for greater flexibility.

Does this PR introduce a breaking change? (check one)

• Yes. Issue #___
• No
  If the new parameter is not specified, the old methods of resolving the path are taken.

The PR fulfills these requirements:

• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

[SyntaxRules]

For your information. I tested this in the tauri getting started by editing build.rs to look like:

use tauri_build::{try_build, Attributes, WindowsAttributes};

fn main() {
    if let Err(error) = try_build(Attributes::new().windows_attributes(
        WindowsAttributes::new().sdk_dir("C:/Program Files (x86)/Windows Kits/10/bin/10.0.19041.0/x64/")
    )) {
        panic!("error found during tauri-build: {}", error);
    }
}

I also ran cargo test and there were no errors.

[lucasfernog]

Can you add a change file? It is a markdown file on the .changes folder, should look like this:

---
"tauri-build": patch
---

...The change description that will be pushed to the changelog

[SyntaxRules]

@lucasfernog Done
Link to it

[lucasfernog]

Thanks for this PR!