Ensure Ember 3.27+ can determine global for template compilation.

Node 12+ has access to `globalThis` (including within a VM context), but
older versions do not.

Due to the detection done in https://git.io/Jtb7s, when we can't find
`globalThis` (and don't define `global` global) evaluating
`ember-template-compiler.js` throws an error "unable to locate global
object".

This ensures that either `globalThis` or `global` are defined.

lib/utils.js

@@ -143,11 +143,21 @@ function getTemplateCompiler(templateCompilerPath, EmberENV = {}) {
   // the shared global config
   let clonedEmberENV = JSON.parse(JSON.stringify(EmberENV));
 
-  let context = vm.createContext({
+  let sandbox = {
     EmberENV: clonedEmberENV,
     module: { require, exports: {} },
     require,
-  });
+  };
+
+  // if we are running on a Node version _without_ a globalThis
+  // we must provide a `global`
+  //
+  // this is due to https://git.io/Jtb7s (Ember 3.27+)
+  if (typeof globalThis === 'undefined') {
+    sandbox.global = sandbox;
+  }
+
+  let context = vm.createContext(sandbox);
 
   script.runInContext(context);