🔨 downgrade jest to fix tests

package.json

@@ -9,7 +9,7 @@
     "@types/node": "14.14.2",
     "jest": "26.6.1",
     "prettier": "2.1.2",
-    "ts-jest": "26.4.2",
+    "ts-jest": "26.4.1",
     "typescript": "4.0.3"
   },
   "workspaces": [

yarn.lock

@@ -339,11 +339,6 @@
     slash "^3.0.0"
     strip-ansi "^6.0.0"
 
-"@jest/create-cache-key-function@^26.5.0":
-  version "26.5.0"
-  resolved "https://registry.yarnpkg.com/@jest/create-cache-key-function/-/create-cache-key-function-26.5.0.tgz#1d07947adc51ea17766d9f0ccf5a8d6ea94c47dc"
-  integrity sha512-DJ+pEBUIqarrbv1W/C39f9YH0rJ4wsXZ/VC6JafJPlHW2HOucKceeaqTOQj9MEDQZjySxMLkOq5mfXZXNZcmWw==
-
 "@jest/environment@^26.6.1":
   version "26.6.1"
   resolved "https://registry.yarnpkg.com/@jest/environment/-/environment-26.6.1.tgz#38a56f1cc66f96bf53befcc5ebeaf1c2dce90e9a"
@@ -6532,12 +6527,11 @@ tr46@^2.0.2:
   dependencies:
     punycode "^2.1.1"
 
-ts-jest@26.4.2:
-  version "26.4.2"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.2.tgz#00b6c970bee202ceef7c6e6e9805c4837b22dab8"
-  integrity sha512-0+MynTTzzbuy5rGjzsCKjxHJk5gY906c/FSaqQ3081+G7dp2Yygfa9hVlbrtNNcztffh1mC6Rs9jb/yHpcjsoQ==
+ts-jest@26.4.1:
+  version "26.4.1"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.1.tgz#08ec0d3fc2c3a39e4a46eae5610b69fafa6babd0"
+  integrity sha512-F4aFq01aS6mnAAa0DljNmKr/Kk9y4HVZ1m6/rtJ0ED56cuxINGq3Q9eVAh+z5vcYKe5qnTMvv90vE8vUMFxomg==
   dependencies:
-    "@jest/create-cache-key-function" "^26.5.0"
     "@types/jest" "26.x"
     bs-logger "0.x"
     buffer-from "1.x"