package.json: update typescript

TypeScript compiler has made some advancements in
type inference that fixes false positives found by
our current version of the compiler.

Change-Id: Id2b939399f48e2adaa0573aa006fdef00e302f41
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/403674
Run-TryBot: Jamal Carvalho <jamal@golang.org>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
diff --git a/package-lock.json b/package-lock.json
index 6bd3dfb..b1fcfbb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "go",
-      "version": "0.33.0-dev",
+      "version": "0.34.0-dev",
       "license": "MIT",
       "dependencies": {
         "deep-equal": "2.0.5",
@@ -45,7 +45,7 @@
         "sinon": "9.2.4",
         "ts-loader": "7.0.5",
         "tslint": "6.1.3",
-        "typescript": "3.9.9",
+        "typescript": "4.6.4",
         "yarn": "1.22.10"
       },
       "engines": {
@@ -5317,9 +5317,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "3.9.9",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.9.tgz",
-      "integrity": "sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==",
+      "version": "4.6.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
+      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -9745,9 +9745,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.9",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.9.tgz",
-      "integrity": "sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==",
+      "version": "4.6.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
+      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
       "dev": true
     },
     "unbox-primitive": {
diff --git a/package.json b/package.json
index 6af7a08..3e558d5 100644
--- a/package.json
+++ b/package.json
@@ -85,7 +85,7 @@
     "sinon": "9.2.4",
     "ts-loader": "7.0.5",
     "tslint": "6.1.3",
-    "typescript": "3.9.9",
+    "typescript": "4.6.4",
     "yarn": "1.22.10"
   },
   "engines": {