test: enable skipped allowedHosts test case (#4177)

Author: snitin315

test/e2e/__snapshots__/allowed-hosts.test.js.snap.webpack4

@@ -30,6 +30,12 @@ exports[`allowed hosts check host headers should always allow value from the \`h
 
 exports[`allowed hosts check host headers should always allow value from the \`host\` options if options.allowedHosts is auto: response status 1`] = `200`;
 
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: console messages 1`] = `Array []`;
+
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: page errors 1`] = `Array []`;
+
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: response status 1`] = `200`;
+
 exports[`allowed hosts should connect web socket client using "[::1] host to web socket server with the "auto" value ("sockjs"): console messages 1`] = `
 Array [
   "[HMR] Waiting for update signal from WDS...",

test/e2e/__snapshots__/allowed-hosts.test.js.snap.webpack5

@@ -30,6 +30,12 @@ exports[`allowed hosts check host headers should always allow value from the \`h
 
 exports[`allowed hosts check host headers should always allow value from the \`host\` options if options.allowedHosts is auto: response status 1`] = `200`;
 
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: console messages 1`] = `Array []`;
+
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: page errors 1`] = `Array []`;
+
+exports[`allowed hosts check host headers should always allow value of the \`host\` option from the \`client.webSocketURL\` option if options.allowedHosts is auto: response status 1`] = `200`;
+
 exports[`allowed hosts should connect web socket client using "[::1] host to web socket server with the "auto" value ("sockjs"): console messages 1`] = `
 Array [
   "[HMR] Waiting for update signal from WDS...",

test/e2e/allowed-hosts.test.js

@@ -1252,7 +1252,7 @@ describe("allowed hosts", () => {
       expect(pageErrors).toMatchSnapshot("page errors");
     });
 
-    it.skip("should always allow value of the `host` option from the `client.webSocketURL` option if options.allowedHosts is auto", async () => {
+    it("should always allow value of the `host` option from the `client.webSocketURL` option if options.allowedHosts is auto", async () => {
       const options = {
         allowedHosts: "auto",
         port: port1,