fix: pass options to contributors lookup (#766)

## PR Checklist

- [x] Addresses an existing open issue: fixes #755
- [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

It was fine on `JoshuaKGoldberg/create-typescript-app` 😄 just ... no
other repos.

Author: JoshuaKGoldberg

src/migrate/migrateWithOptions.ts

@@ -49,9 +49,8 @@ export async function migrateWithOptions({
 	}
 
 	if (!options.excludeContributors) {
-		await withSpinner(
-			"Detecting existing contributors",
-			detectExistingContributors,
+		await withSpinner("Detecting existing contributors", async () =>
+			detectExistingContributors(options),
 		);
 	}
 

src/steps/detectExistingContributors.test.ts

@@ -18,13 +18,18 @@ vi.mock("execa", () => ({
 	},
 }));
 
+const options = {
+	owner: "TestOwner",
+	repository: "test-repository",
+};
+
 describe("detectExistingContributors", () => {
 	it("runs npx all-contributors add for each contributor and contribution type", async () => {
 		mockGetAllContributorsForRepository.mockResolvedValue({
 			username: ["bug", "docs"],
 		});
 
-		await detectExistingContributors();
+		await detectExistingContributors(options);
 
 		expect(mock$.mock.calls).toMatchInlineSnapshot(`
 			[

src/steps/detectExistingContributors.ts

@@ -1,10 +1,14 @@
 import { getAllContributorsForRepository } from "all-contributors-for-repository";
 import { $ } from "execa";
 
-export async function detectExistingContributors() {
+import { Options } from "../shared/types.js";
+
+export async function detectExistingContributors(
+	options: Pick<Options, "owner" | "repository">,
+) {
 	const contributors = await getAllContributorsForRepository({
-		owner: "JoshuaKGoldberg",
-		repo: "create-typescript-app",
+		owner: options.owner,
+		repo: options.repository,
 	});
 
 	for (const [contributor, contributions] of Object.entries(contributors)) {