feat: Add .eslintrc to clearUnnecessaryFiles.ts (#1052)

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## PR Checklist

- [X] Addresses an existing open issue: fixes #1018 
- [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
Adds `.eslintrc` to the list of files deleted by
`clearUnnecessaryFiles.ts`
<!-- Description of what is changed and how the code change does that.
-->

Author: jaas666

src/steps/clearUnnecessaryFiles.ts

@@ -11,6 +11,7 @@ const globPaths = [
 	".circleci/config.yml",
 	".babelrc",
 	".npmignore",
+	".eslintrc",
 	"CODE_OF_CONDUCT.md",
 	"CONTRIBUTING.md",
 	"codecov.yml",