updating alowed hosts in isGhes check

updating alowed hosts in artifact ghes check

using dot prepend ghe host

packages/artifact/__tests__/config.test.ts

@@ -0,0 +1,29 @@
+import * as config from '../src/internal/shared/config'
+
+
+beforeEach(() => {
+    jest.resetModules() 
+  });
+  
+
+describe('isGhes', () => {
+    it('should return false when the request domain is github.com', () => {
+        process.env.GITHUB_SERVER_URL = 'https://github.com'
+        expect(config.isGhes()).toBe(false)
+    })
+
+    it('should return false when the request domain ends with ghe.com', () => {
+        process.env.GITHUB_SERVER_URL = 'https://my.domain.ghe.com'
+        expect(config.isGhes()).toBe(false)
+    })
+
+    it('should return false when the request domain ends with ghe.localhost', () => {
+        process.env.GITHUB_SERVER_URL = 'https://my.domain.ghe.localhost'
+        expect(config.isGhes()).toBe(false)
+    })
+
+    it('should return false when the request domain is specific to an enterprise', () => {
+        process.env.GITHUB_SERVER_URL = 'https://my-enterprise.github.com'
+        expect(config.isGhes()).toBe(true)
+    })
+})