Upgrade Octokit packages

Author: koesie10

extensions/ql-vscode/package-lock.json

@@ -1968,9 +1968,9 @@
   },
   "dependencies": {
     "@floating-ui/react": "^0.26.12",
-    "@octokit/plugin-retry": "^6.0.1",
-    "@octokit/plugin-throttling": "^8.0.0",
-    "@octokit/rest": "^20.0.2",
+    "@octokit/plugin-retry": "^7.1.1",
+    "@octokit/plugin-throttling": "^9.3.1",
+    "@octokit/rest": "^21.0.2",
     "@vscode/codicons": "^0.0.36",
     "@vscode/debugadapter": "^1.59.0",
     "@vscode/debugprotocol": "^1.65.0",

extensions/ql-vscode/package.json

@@ -32,9 +32,6 @@ describe("handleRequestError", () => {
 
   it("returns false when handling an error without response", () => {
     const e = new RequestError("Timeout", 500, {
-      headers: {
-        "Content-Type": "application/json",
-      },
       request: {
         method: "POST",
         url: faker.internet.url(),