fix: update resolveBin to use fileURLToPath for cross-platform compatibility (#2069)

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## PR Checklist

- [x] Addresses an existing open issue: fixes #2064
- [x] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/create-typescript-app/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

<!-- Description of what is changed and how the code change does that.
-->

### 🧐 The Problem

On Windows, file paths typically begin with a drive letter (e.g., `C:`).
However, to conform to the `file://` URI scheme in Node.js, they must be
prefixed with a slash (e.g., `/C:`), resulting in a correct file URL
like `file:///C:/GHub/file.js`.

Currently, the `resolveBin` function does not properly handle this
conversion and mistakenly outputs an absolute path with a leading slash,
such as `/C:/GHub/file.js`. This format is invalid on Windows, where the
correct absolute path should be `C:/GHub/file.js`.

Mishandling paths that start with a leading slash on Windows can cause
them to be interpreted as relative to the current drive, leading to
incorrect resolutions. This can result in an erroneous path with
duplicated drive letters (like `C:/C:/GHub/file.js`).

### 💡 The Solution

To resolve this issue, we should use the [`fileURLToPath`
function](https://nodejs.org/api/url.html#urlfileurltopathurl-options)
from the `node:url` module instead of manually handling paths via
regular expressions. This approach ensures that paths are correctly
converted and eliminates the risk of incorrect path handling on Windows.

### ✔️ Testing
I have tested this change on Windows and WSL (Ubuntu 24.04.2 LTS), and
it works as expected.

## Additional Info

💖

Author: astrochemx

src/utils/resolveBin.ts

@@ -1,7 +1,9 @@
+import { fileURLToPath } from "node:url";
+
 // TODO: try to see if we can avoid this altogether...
 // https://github.com/JoshuaKGoldberg/create-typescript-app/issues/1992
 export function resolveBin(bin: string) {
 	// This can't be tested yet in Vitest :(
 	// https://github.com/vitest-dev/vitest/issues/6953
-	return import.meta.resolve(bin).replace(/^file:\/\//gu, "");
+	return fileURLToPath(import.meta.resolve(bin));
 }