feat: replace parsePackageAuthor with npm package (#904)

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## PR Checklist

- [x] Addresses an existing open issue: fixes #789
- [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

#789 parse-author dependency was installed and the parse method was used
to replace split and trim logic on the string containing author's name
and email

Author: kristo-baricevic

package.json

@@ -53,6 +53,7 @@
 		"lazy-value": "^3.0.0",
 		"npm-user": "^5.0.1",
 		"octokit": "^3.1.0",
+		"parse-author": "^2.0.0",
 		"prettier": "^3.0.2",
 		"replace-in-file": "^7.0.1",
 		"title-case": "^4.0.0",
@@ -66,6 +67,7 @@
 		"@types/git-url-parse": "^9.0.1",
 		"@types/js-yaml": "^4.0.5",
 		"@types/node": "^20.5.6",
+		"@types/parse-author": "^2.0.1",
 		"@types/prettier": "^2.7.3",
 		"@typescript-eslint/eslint-plugin": "^6.5.0",
 		"@typescript-eslint/parser": "^6.5.0",

pnpm-lock.yaml

@@ -1,13 +1,19 @@
+import parse from "parse-author";
+
 import { PartialPackageData } from "../../types.js";
 
 export function parsePackageAuthor(packageData: PartialPackageData) {
-	const [packageAuthor, packageEmail] =
-		typeof packageData.author === "string"
-			? [
-					packageData.author.split("<")[0].trim(),
-					packageData.author.split(/<|>/)[1]?.trim(),
-			  ]
-			: [packageData.author?.name, packageData.author?.email];
+	let packageAuthor: string | undefined;
+	let packageEmail: string | undefined;
+
+	if (typeof packageData.author === "string") {
+		const parsedAuthor = parse(packageData.author);
+		packageAuthor = parsedAuthor.name;
+		packageEmail = parsedAuthor.email;
+	} else if (packageData.author) {
+		packageAuthor = packageData.author.name;
+		packageEmail = packageData.author.email;
+	}
 
 	return {
 		author: packageAuthor,