Update dependency @types/jest to v26 (#108)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "@types/flat": "^5.0.0",
-    "@types/jest": "^25.0.0",
+    "@types/jest": "^26.0.0",
     "@types/js-yaml": "^3.12.1",
     "@types/jsdom": "^16.0.0",
     "@types/json5": "^0.0.30",

yarn.lock

@@ -735,10 +735,10 @@
     "@types/istanbul-lib-coverage" "*"
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@^25.0.0":
-  version "25.2.1"
-  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-25.2.1.tgz#9544cd438607955381c1bdbdb97767a249297db5"
-  integrity sha512-msra1bCaAeEdkSyA0CZ6gW1ukMIvZ5YoJkdXw/qhQdsuuDlFTcEUrUw8CLCPt2rVRUfXlClVvK2gvPs9IokZaA==
+"@types/jest@^26.0.0":
+  version "26.0.0"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.0.tgz#a6d7573dffa9c68cbbdf38f2e0de26f159e11134"
+  integrity sha512-/yeMsH9HQ1RLORlXAwoLXe8S98xxvhNtUz3yrgrwbaxYjT+6SFPZZRksmRKRA6L5vsUtSHeN71viDOTTyYAD+g==
   dependencies:
     jest-diff "^25.2.1"
     pretty-format "^25.2.1"