feat: add --cert e2e extension test

Author: jsjoeio

test/e2e/extensions.test.ts

@@ -1,6 +1,6 @@
 import { describe, test } from "./baseFixture"
 
-describe("Extensions", true, () => {
+function runTestExtensionTests() {
   // This will only work if the test extension is loaded into code-server.
   test("should have access to VSCODE_PROXY_URI", async ({ codeServerPage }) => {
     const address = await codeServerPage.address()
@@ -9,4 +9,12 @@ describe("Extensions", true, () => {
 
     await codeServerPage.page.waitForSelector(`text=${address}/proxy/{{port}}`)
   })
+}
+
+describe("Extensions", true, [], () => {
+  runTestExtensionTests()
 })
+
+describe("Extensions with --cert", true, ["--cert"], () => {
+  runTestExtensionTests()
+})