fix: disable gpg signing on initial commit (#1615)

## PR Checklist

- [x] Addresses an existing open issue: fixes #1275
- [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

Fixes the issue by disabling GPG signing altogether. 

It would be nice to detect if the user is on a GUI, or wait up to only a
second for the first commit... but that adds complications and race
conditions (what if the first commit is running some other commands?).

💖

src/create/createWithOptions.test.ts

@@ -174,7 +174,7 @@ describe("createWithOptions", () => {
 			  [
 			    [
 			      "git commit --message ",
-			      "",
+			      " --no-gpg-sign",
 			    ],
 			    "feat: initialized repo ✨",
 			  ],

src/create/createWithOptions.ts

@@ -59,7 +59,7 @@ export async function createWithOptions({ github, options }: GitHubAndOptions) {
 		await withSpinner("Initializing GitHub repository", async () => {
 			await $`git remote add origin https://github.com/${options.owner}/${options.repository}`;
 			await $`git add -A`;
-			await $`git commit --message ${"feat: initialized repo ✨"}`;
+			await $`git commit --message ${"feat: initialized repo ✨"} --no-gpg-sign`;
 			await $`git push -u origin main --force`;
 			await initializeGitHubRepository(github.octokit, options);
 		});