Update Node.js to v14

Author: renovate-bot

package.json

@@ -4,7 +4,7 @@
   "private": true,
   "publisher": "sourcegraph",
   "engines": {
-    "node": ">=11.1.0"
+    "node": ">=v14.17.5"
   },
   "repository": {
     "type": "git",
@@ -32,7 +32,7 @@
     "@types/lodash": "4.14.172",
     "@types/mkdirp-promise": "5.0.0",
     "@types/mz": "2.7.4",
-    "@types/node": "12.20.19",
+    "@types/node": "14.17.9",
     "@types/relateurl": "0.2.29",
     "@types/rmfr": "2.0.1",
     "@types/semver": "7.1.0",

yarn.lock

@@ -1064,16 +1064,16 @@
   dependencies:
     "@types/node" "*"
 
-"@types/node@*", "@types/node@>=4.5.0", "@types/node@^13.7.4":
+"@types/node@*", "@types/[email protected]", "@types/node@>=4.5.0":
+  version "14.17.9"
+  resolved "https://registry.npmjs.org/@types/node/-/node-14.17.9.tgz#b97c057e6138adb7b720df2bd0264b03c9f504fd"
+  integrity sha512-CMjgRNsks27IDwI785YMY0KLt3co/c0cQ5foxHYv/shC2w8oOnVwz5Ubq1QG5KzrcW+AXk6gzdnxIkDnTvzu3g==
+
+"@types/node@^13.7.4":
   version "13.7.7"
   resolved "https://registry.npmjs.org/@types/node/-/node-13.7.7.tgz#1628e6461ba8cc9b53196dfeaeec7b07fa6eea99"
   integrity sha512-Uo4chgKbnPNlxQwoFmYIwctkQVkMMmsAoGGU4JKwLuvBefF0pCq4FybNSnfkfRCpC7ZW7kttcC/TrRtAJsvGtg==
 
-"@types/[email protected]":
-  version "12.20.19"
-  resolved "https://registry.npmjs.org/@types/node/-/node-12.20.19.tgz#538e61fc220f77ae4a4663c3d8c3cb391365c209"
-  integrity sha512-niAuZrwrjKck4+XhoCw6AAVQBENHftpXw9F4ryk66fTgYaKQ53R4FI7c9vUGGw5vQis1HKBHDR1gcYI/Bq1xvw==
-
 "@types/parse-json@^4.0.0":
   version "4.0.0"
   resolved "https://registry.npmjs.org/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"