core: hack for broken package @types/express-serve-static-core

package.json

@@ -22,6 +22,7 @@
         "debug": "node --async-stack-traces --trace-deprecation --enable-source-maps node_modules/hydrooj/bin/hydrooj --debug --template",
         "start:all": "node build/start",
         "start": "node_modules/.bin/hydrooj",
+        "postinstall": "node build/hack",
         "clean": "zsh -c \"rm -rf tsconfig.build.tsbuildinfo ./packages/*/tsconfig.tsbuildinfo ./packages/*/dist ./.coverage\""
     },
     "version": "1.0.0",
@@ -30,26 +31,26 @@
         "@shelf/jest-mongodb": "^1.2.5",
         "@types/cross-spawn": "^6.0.2",
         "@types/jest": "^26.0.23",
-        "@types/node": "^15.6.1",
+        "@types/node": "^15.12.0",
         "@types/semver": "^7.3.6",
-        "@typescript-eslint/eslint-plugin": "^4.25.0",
-        "@typescript-eslint/parser": "^4.25.0",
+        "@typescript-eslint/eslint-plugin": "^4.26.0",
+        "@typescript-eslint/parser": "^4.26.0",
         "cac": "^6.7.3",
         "cross-env": "^7.0.3",
         "cross-spawn": "^7.0.3",
         "eslint": "^7.27.0",
         "eslint-config-airbnb-typescript": "^12.3.1",
         "eslint-import-resolver-typescript": "^2.4.0",
-        "eslint-plugin-import": "^2.23.3",
+        "eslint-plugin-import": "^2.23.4",
         "fs-extra": "^10.0.0",
         "globby": "^11.0.3",
-        "jest": "^27.0.1",
+        "jest": "^27.0.4",
         "latest-version": "^5.1.0",
         "mongodb": "^3.6.9",
-        "nmls": "^3.0.0",
+        "nmls": "^3.0.1",
         "ora": "^5.4.0",
         "semver": "^7.3.5",
-        "ts-jest": "^27.0.1",
+        "ts-jest": "^27.0.2",
         "typedoc": "^0.20.36",
         "typescript": "4.2.4"
     }