chore(deps): update jest monorepo to v26

Author: renovate-bot

package.json

@@ -49,12 +49,12 @@
     "cssnano": "^4.1.10",
     "autoprefixer": "^9.5.1",
     "babel-core": "7.0.0-bridge.0",
-    "babel-jest": "24.7.1",
+    "babel-jest": "26.6.1",
     "babel-preset-es2015": "6.24.1",
     "coveralls": "3.0.3",
     "fs-extra": "^7.0.1",
-    "jest": "24.7.1",
-    "jest-cli": "24.7.1",
+    "jest": "26.6.1",
+    "jest-cli": "26.6.1",
     "makeshift": "1.1.0",
     "puppeteer": "2.0.0",
     "rollup-plugin-node-builtins": "^2.1.2",