chore: downgrade jest

Author: aminya

package.json

@@ -101,21 +101,21 @@
     "@types/jasmine": "^3.7.7",
     "@types/temp": "^0.9.0",
     "atom-jasmine3-test-runner": "^5.2.6",
-    "babel-jest": "^27.0.2",
+    "babel-jest": "^26",
     "babel-preset-atomic": "^4.1.0",
     "build-commit": "0.1.4",
     "chance": "^1.1.7",
     "cross-env": "7.0.3",
     "csstype": "^3.0.8",
     "eslint": "7.28.0",
     "eslint-config-atomic": "^1.15.3",
-    "jest": "^27.0.4",
-    "jest-circus": "^27.0.4",
-    "jest-haste-map": "27.0.2",
-    "jest-message-util": "27.0.2",
-    "jest-mock": "27.0.3",
-    "jest-runner": "27.0.4",
-    "jest-runtime": "27.0.4",
+    "jest": "^26",
+    "jest-circus": "^26",
+    "jest-haste-map": "^26",
+    "jest-message-util": "^26",
+    "jest-mock": "^26",
+    "jest-runner": "^26",
+    "jest-runtime": "^26",
     "mkdirp": "1.0.4",
     "node-ipc": "9.1.4",
     "npm-check-updates": "11.6.0",