feat: make @testing-library/dom a peer dependency

BREAKING CHANGE

Author: G-Rath

package.json

@@ -42,7 +42,6 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.16.3",
-    "@testing-library/dom": "^8.11.1",
     "requireindex": "^1.2.0"
   },
   "devDependencies": {
@@ -55,7 +54,8 @@
     "typescript": "^4.5.3"
   },
   "peerDependencies": {
-    "eslint": "^6.8.0 || ^7.0.0 || ^8.0.0"
+    "eslint": "^6.8.0 || ^7.0.0 || ^8.0.0",
+    "@testing-library/dom": "^8.0.0 || ^9.0.0"
   },
   "eslintConfig": {
     "extends": "./node_modules/kcd-scripts/eslint.js",