docs: update test to match monorepo

I removed the unneeded variables in the monorepo, so I am updating the
usage here as well.

Author: kanej

docs/src/content/ignition/docs/guides/upgradeable-proxies.md

@@ -285,7 +285,7 @@ import UpgradeModule from "../ignition/modules/UpgradeModule";
 describe("Demo Proxy", function () {
   describe("Proxy interaction", async function () {
     it("Should be interactable via proxy", async function () {
-      const [owner, otherAccount] = await ethers.getSigners();
+      const [, otherAccount] = await ethers.getSigners();
 
       const { demo } = await ignition.deploy(ProxyModule);
 
@@ -295,15 +295,15 @@ describe("Demo Proxy", function () {
 
   describe("Upgrading", function () {
     it("Should have upgraded the proxy to DemoV2", async function () {
-      const [owner, otherAccount] = await ethers.getSigners();
+      const [, otherAccount] = await ethers.getSigners();
 
       const { demo } = await ignition.deploy(ProxyModule);
 
       expect(await demo.connect(otherAccount).version()).to.equal("2.0.0");
     });
 
     it("Should have set the name during upgrade", async function () {
-      const [owner, otherAccount] = await ethers.getSigners();
+      const [, otherAccount] = await ethers.getSigners();
 
       const { demo } = await ignition.deploy(UpgradeModule);