[release] package.json: change version to v0.27.2

Change-Id: I5c3dec438fa55a8faf046ba4bf95cbea7c1d1cf6
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/346329
Trust: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Suzy Mueller <suzmue@golang.org>

Author: hyangah

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "go",
   "displayName": "Go",
-  "version": "0.27.1",
+  "version": "0.27.2",
   "publisher": "golang",
   "description": "Rich Go language support for Visual Studio Code",
   "author": {