fix: bump cspell from 8 to 9 (#2237)

## PR Checklist

- [x] Addresses an existing open issue: fixes #2227
- [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

As of #2230, CTA requires a Node.js version with require(esm). That made
this much easier.

Also bumps `cspell-populate-words` while I'm in the area.

🎁

Author: JoshuaKGoldberg

cspell.json

@@ -14,14 +14,11 @@
 		"TSESTree",
 		"apexskier",
 		"attw",
-		"boop",
 		"dbaeumer",
 		"eslint-doc-generatorrc",
 		"infile",
 		"joshuakgoldberg",
-		"markdownlintignore",
 		"mshick",
-		"npmjs",
 		"octoguide",
 		"stefanzweifel"
 	]

package.json

@@ -42,7 +42,7 @@
 		"bingo-fs": "^0.5.5",
 		"bingo-stratum": "^0.5.11",
 		"cached-factory": "^0.1.0",
-		"cspell-populate-words": "^0.3.0",
+		"cspell-populate-words": "^0.3.1",
 		"execa": "^9.5.2",
 		"git-url-parse": "^16.0.1",
 		"github-default-labels": "^0.1.0",
@@ -92,7 +92,7 @@
 		"bingo-stratum-testers": "0.5.9",
 		"bingo-testers": "0.5.7",
 		"console-fail-test": "0.5.0",
-		"cspell": "8.17.5",
+		"cspell": "9.1.2",
 		"eslint": "9.29.0",
 		"eslint-plugin-jsdoc": "51.2.3",
 		"eslint-plugin-jsonc": "2.20.1",