Upgrade Ava to v4

node_modules/ava/lib/worker/guard-environment.cjs

@@ -0,0 +1,19 @@
+'use strict';
+const path = require('path');
+const process = require('process');
+
+const {isRunningInThread, isRunningInChildProcess} = require('./utils.cjs');
+
+// Check if the test is being run without AVA cli
+if (!isRunningInChildProcess && !isRunningInThread) {
+	if (process.argv[1]) {
+		const fp = path.relative('.', process.argv[1]);
+
+		console.log();
+		console.error(`Test files must be run with the AVA CLI:\n\n    $ ava ${fp}\n`);
+
+		process.exit(1); // eslint-disable-line unicorn/no-process-exit
+	} else {
+		throw new Error('The ’ava’ module can only be imported in test files');
+	}
+}