[Tests] skip test that fails in node 14

Author: ljharb

test/parallel/test-assert-checktag.js

@@ -10,6 +10,7 @@ const {isBrowser} = require('../common');
 const assert = require('../../assert');
 
 const isNode14 = process.versions.node.indexOf('.') > 1 && process.versions.node.slice(0, 2) >= 14;
+const isNode15 = isNode14 && process.versions.node.slice(0, 2) >= 15;
 
 // Disable colored output to prevent color codes from breaking assertion
 // message comparisons. This should only be an issue when process.stdout
@@ -61,7 +62,7 @@ if (!isBrowser && isNode14) {  // At the moment global has its own type tag
 }
 
 
-if (!isBrowser && isNode14) { // At the moment process has its own type tag
+if (!isBrowser && isNode15) { // At the moment process has its own type tag
   const fakeProcess = {};
   Object.setPrototypeOf(fakeProcess, Object.getPrototypeOf(process));
   Object.keys(process).forEach(prop => {