Downgrade node types to v12

package.json

@@ -30,11 +30,11 @@
   },
   "main": "out/node/entry.js",
   "devDependencies": {
-    "@types/fs-extra": "^9.0.1",
+    "@types/fs-extra": "^8.0.1",
     "@types/http-proxy": "^1.17.4",
     "@types/js-yaml": "^3.12.3",
     "@types/mocha": "^8.0.3",
-    "@types/node": "^14.6.0",
+    "@types/node": "^12.12.7",
     "@types/parcel-bundler": "^1.12.1",
     "@types/pem": "^1.9.5",
     "@types/safe-compare": "^1.1.0",

yarn.lock

@@ -1014,10 +1014,10 @@
     "@types/qs" "*"
     "@types/range-parser" "*"
 
-"@types/fs-extra@^9.0.1":
-  version "9.0.1"
-  resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-9.0.1.tgz#91c8fc4c51f6d5dbe44c2ca9ab09310bd00c7918"
-  integrity sha512-B42Sxuaz09MhC3DDeW5kubRcQ5by4iuVQ0cRRWM2lggLzAa/KVom0Aft/208NgMvNQQZ86s5rVcqDdn/SH0/mg==
+"@types/fs-extra@^8.0.1":
+  version "8.1.1"
+  resolved "https://registry.yarnpkg.com/@types/fs-extra/-/fs-extra-8.1.1.tgz#1e49f22d09aa46e19b51c0b013cb63d0d923a068"
+  integrity sha512-TcUlBem321DFQzBNuz8p0CLLKp0VvF/XH9E4KHNmgwyp4E3AfgI5cjiIVZWlbfThBop2qxFIh4+LeY6hVWWZ2w==
   dependencies:
     "@types/node" "*"
 
@@ -1058,11 +1058,6 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.54.tgz#a4b58d8df3a4677b6c08bfbc94b7ad7a7a5f82d1"
   integrity sha512-ge4xZ3vSBornVYlDnk7yZ0gK6ChHf/CHB7Gl1I0Jhah8DDnEQqBzgohYG4FX4p81TNirSETOiSyn+y1r9/IR6w==
 
-"@types/node@^14.6.0":
-  version "14.6.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.6.0.tgz#7d4411bf5157339337d7cff864d9ff45f177b499"
-  integrity sha512-mikldZQitV94akrc4sCcSjtJfsTKt4p+e/s0AGscVA6XArQ9kFclP+ZiYUMnq987rc6QlYxXv/EivqlfSLxpKA==
-
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"