[release] package.json: require vscode 1.46 or up

The recent change (https://go-review.googlesource.com/c/vscode-go/+/245127)
uses an API that's available only from 1.46. So, this extension
requires at least 1.46. Earlier versions of VS code will refuse
to install the new extension and remain with the last version.

Also, update vscode-languageclient to 6.1.3

Change-Id: I4039a1b882ccd59ad5d16d142bbf49f26e793d37
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/245638
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
(cherry picked from commit fe3c6b55efacfecb8ea5abf2cafc3b24679a270a)
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/245641
Reviewed-by: Brayden Cloud <bcloud@google.com>
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
diff --git a/package-lock.json b/package-lock.json
index 11c87e6..8d0cc41 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4722,12 +4722,12 @@
       "integrity": "sha512-JvONPptw3GAQGXlVV2utDcHx0BiY34FupW/kI6mZ5x06ER5DdPG/tXWMVHjTNULF5uKPOUUD0SaXg5QaubJL0A=="
     },
     "vscode-languageclient": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-6.1.0.tgz",
-      "integrity": "sha512-Tcp0VoOaa0YzxL4nEfK9tsmcy76Eo8jNLvFQZwh2c8oMm02luL8uGYPLQNAiZ3XGgegfcwiQFZMqbW7DNV0vxA==",
+      "version": "6.1.3",
+      "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-6.1.3.tgz",
+      "integrity": "sha512-YciJxk08iU5LmWu7j5dUt9/1OLjokKET6rME3cI4BRpiF6HZlusm2ZwPt0MYJ0lV5y43sZsQHhyon2xBg4ZJVA==",
       "requires": {
         "semver": "^6.3.0",
-        "vscode-languageserver-protocol": "^3.15.2"
+        "vscode-languageserver-protocol": "^3.15.3"
       },
       "dependencies": {
         "semver": {
diff --git a/package.json b/package.json
index 0992973..f6f7a94 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "tree-kill": "file:third_party/tree-kill",
     "vscode-debugadapter": "^1.40.0",
     "vscode-debugprotocol": "^1.40.0",
-    "vscode-languageclient": "6.1.0",
+    "vscode-languageclient": "^6.1.3",
     "web-request": "^1.0.7"
   },
   "devDependencies": {
@@ -83,7 +83,7 @@
     "yarn": "^1.22.4"
   },
   "engines": {
-    "vscode": "^1.41.0"
+    "vscode": "^1.46.0"
   },
   "activationEvents": [
     "workspaceContains:**/*.go",