Be more strict with @types/node

Co-authored-by: Veetaha <[email protected]>

Author: lnicola

rust-analyzer/editors/code/package-lock.json

@@ -43,7 +43,7 @@
         "@rollup/plugin-node-resolve": "^8.1.0",
         "@types/glob": "^7.1.2",
         "@types/mocha": "^7.0.2",
-        "@types/node": "^12.12.0",
+        "@types/node": "~12.7.0",
         "@types/node-fetch": "^2.5.7",
         "@types/vscode": "^1.44.1",
         "@typescript-eslint/eslint-plugin": "^3.4.0",