build: downgrade to typescript@4.1.0 to make linter pass

package.json

@@ -45,7 +45,7 @@
     "ts-generator": "^0.1.1",
     "ts-node": "^8.10.2",
     "typechain": "^4.0.1",
-    "typescript": "^4.2.2"
+    "typescript": "<4.1.0"
   },
   "files": [
     "/contracts"

yarn.lock

@@ -9445,10 +9445,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^4.2.2:
-  version "4.2.3"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-4.2.3.tgz#39062d8019912d43726298f09493d598048c1ce3"
-  integrity sha512-qOcYwxaByStAWrBf4x0fibwZvMRG+r4cQoTjbPtUlrWjBHbmCAww1i448U0GJ+3cNNEtebDteo/cHOR3xJ4wEw==
+typescript@<4.1.0:
+  version "4.0.7"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-4.0.7.tgz#7168032c43d2a2671c95c07812f69523c79590af"
+  integrity sha512-yi7M4y74SWvYbnazbn8/bmJmX4Zlej39ZOqwG/8dut/MYoSQ119GY9ZFbbGsD4PFZYWxqik/XsP3vk3+W5H3og==
 
 typewise-core@^1.2, typewise-core@^1.2.0:
   version "1.2.0"