chore: 🤖 downgrade @types/node

Due issue
conventional-changelog/commitlint#874

package.json

@@ -91,7 +91,7 @@
     "@types/koa-static": "^4.0.1",
     "@types/minimist": "^1.2.0",
     "@types/mkdirp": "^0.5.2",
-    "@types/node": "^13.1.1",
+    "@types/node": "^12.12.22",
     "@types/pixelmatch": "^5.0.0",
     "@types/pngjs": "^3.4.0",
     "@types/react": "^16.9.17",

yarn.lock

@@ -2002,7 +2002,7 @@
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-5.2.7.tgz#315d570ccb56c53452ff8638738df60726d5b6ea"
   integrity sha512-NYrtPht0wGzhwe9+/idPaBB+TqkY9AhTvOLMkThm0IoEfLaiVQZwBwyJ5puCkO3AUCWrmcoePjp2mbFocKy4SQ==
 
-"@types/node@*", "@types/node@^13.1.1":
+"@types/node@*":
   version "13.1.1"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-13.1.1.tgz#6d11a8c2d58405b3db9388ab740106cbfa64c3c9"
   integrity sha512-hx6zWtudh3Arsbl3cXay+JnkvVgCKzCWKv42C9J01N2T2np4h8w5X8u6Tpz5mj38kE3M9FM0Pazx8vKFFMnjLQ==
@@ -2012,6 +2012,11 @@
   resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.21.tgz#aa44a6363291c7037111c47e4661ad210aded23f"
   integrity sha512-8sRGhbpU+ck1n0PGAUgVrWrWdjSW2aqNeyC15W88GRsMpSwzv6RJGlLhE7s2RhVSOdyDmxbqlWSeThq4/7xqlA==
 
+"@types/node@^12.12.22":
+  version "12.12.22"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-12.12.22.tgz#b8d9eae3328b96910a373cf06ac8d3c5abe9c200"
+  integrity sha512-r5i93jqbPWGXYXxianGATOxTelkp6ih/U0WVnvaqAvTqM+0U6J3kw6Xk6uq/dWNRkEVw/0SLcO5ORXbVNz4FMQ==
+
 "@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"