chore(deps): update dependency jest to v26.6.0

Author: renovate-bot

package.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@graphql-tools/schema": "6.2.4",
     "@types/jest": "26.0.14",
-    "jest": "26.4.2",
+    "jest": "26.6.0",
     "jest-extended": "0.11.5",
     "prettier": "2.1.2",
     "semantic-release": "17.1.2",