test: Green CI (#1)

* chore: Format

* test: Drop usage of jest-dom

Author: eps1lon

.github/ISSUE_TEMPLATE.md

@@ -20,10 +20,10 @@ https://github.com/testing-library/testing-library-docs
 - Testing Framework and version:
   <!-- are you using jest, mocha, puppeteer, ava? And what version? -->
 - Environment:
-  <!-- 
-  If you're testing in JSDOM (the default with jest), what version? 
-  If you're testing in a browser, which one and what version? 
-  If you're testing in another runtime (e.g. Node.js, Deno, Cloudflare workers), which one and what version? 
+  <!--
+  If you're testing in JSDOM (the default with jest), what version?
+  If you're testing in a browser, which one and what version?
+  If you're testing in another runtime (e.g. Node.js, Deno, Cloudflare workers), which one and what version?
   -->
 
 <!--

.github/ISSUE_TEMPLATE/Bug_Report.md

@@ -24,10 +24,10 @@ https://github.com/testing-library/testing-library-docs
 - Testing Framework and version:
   <!-- are you using jest, mocha, puppeteer, ava? And what version? -->
 - Environment:
-  <!-- 
-  If you're testing in JSDOM (the default with jest), what version? 
-  If you're testing in a browser, which one and what version? 
-  If you're testing in another runtime (e.g. Node.js, Deno, Cloudflare workers), which one and what version? 
+  <!--
+  If you're testing in JSDOM (the default with jest), what version?
+  If you're testing in a browser, which one and what version?
+  If you're testing in another runtime (e.g. Node.js, Deno, Cloudflare workers), which one and what version?
   -->
 
 <!--

tests/setup-env.js

@@ -1,4 +1,3 @@
-import '@testing-library/jest-dom/extend-expect'
 import jestSnapshotSerializerAnsi from 'jest-snapshot-serializer-ansi'
 
 expect.addSnapshotSerializer(jestSnapshotSerializerAnsi)