Bump @types/jest from 26.0.22 to 26.0.23 in /cdk

Bumps [@types/jest](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/jest) from 26.0.22 to 26.0.23.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/jest)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

cdk/package.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@aws-cdk/assert": "^1.100.0",
-    "@types/jest": "^26.0.10",
+    "@types/jest": "^26.0.23",
     "@types/node": "10.17.27",
     "aws-cdk": "^1.100.0",
     "jest": "^26.4.2",

cdk/yarn.lock

@@ -1056,10 +1056,10 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@^26.0.10":
-  version "26.0.22"
-  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.22.tgz#8308a1debdf1b807aa47be2838acdcd91e88fbe6"
-  integrity sha512-eeWwWjlqxvBxc4oQdkueW5OF/gtfSceKk4OnOAGlUSwS/liBRtZppbJuz1YkgbrbfGOoeBHun9fOvXnjNwrSOw==
+"@types/jest@^26.0.23":
+  version "26.0.23"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.23.tgz#a1b7eab3c503b80451d019efb588ec63522ee4e7"
+  integrity sha512-ZHLmWMJ9jJ9PTiT58juykZpL7KjwJywFN3Rr2pTSkyQfydf/rk22yS7W8p5DaVUMQ2BQC7oYiU3FjbTM/mYrOA==
   dependencies:
     jest-diff "^26.0.0"
     pretty-format "^26.0.0"