Meta: Simplify tests

Author: fregante

package.json

@@ -26,7 +26,7 @@
 		"esm/index.d.ts"
 	],
 	"scripts": {
-		"ava": "TS_NODE_PROJECT=tsconfig.ava.json ava --timeout 30s",
+		"ava": "TS_NODE_COMPILER_OPTIONS='{\"esModuleInterop\": true}' ava --timeout 30s",
 		"build": "rollup -c",
 		"prepack": "rollup -c",
 		"test": "run-p build ava xo",
@@ -71,20 +71,20 @@
 	},
 	"devDependencies": {
 		"@rollup/plugin-json": "^4.1.0",
-		"@rollup/plugin-typescript": "^4.1.2",
+		"@rollup/plugin-typescript": "^6.0.0",
 		"@sindresorhus/tsconfig": "^0.7.0",
-		"@types/jsdom": "^16.2.3",
-		"ava": "^3.10.0",
+		"@types/jsdom": "^16.2.4",
+		"ava": "^3.12.1",
 		"esm": "^3.2.25",
-		"github-reserved-names": "^1.1.8",
-		"jsdom": "^16.2.2",
+		"github-reserved-names": "^2.0.0",
+		"jsdom": "^16.4.0",
 		"npm-run-all": "^4.1.5",
-		"rollup": "^2.13.1",
-		"rollup-plugin-terser": "^6.1.0",
+		"rollup": "^2.28.1",
+		"rollup-plugin-terser": "^7.0.2",
 		"strip-indent": "^3.0.0",
-		"ts-node": "^8.10.2",
-		"tslib": "^2.0.0",
-		"typescript": "^3.9.5",
-		"xo": "^0.32.0"
+		"ts-node": "^9.0.0",
+		"tslib": "^2.0.1",
+		"typescript": "^4.0.3",
+		"xo": "^0.33.1"
 	}
 }

tsconfig.ava.json

@@ -2,6 +2,10 @@
 	"extends": "@sindresorhus/tsconfig",
 	"compilerOptions": {
 		"outDir": "cjs",
+		"lib": [
+			"dom",
+			"es2019"
+		],
 		"rootDir": "."
 	},
 	"include": [