Bump ts-jest from 26.4.2 to 26.4.3

Bumps [ts-jest](https://github.com/kulshekhar/ts-jest) from 26.4.2 to 26.4.3.
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md)
- [Commits](kulshekhar/ts-jest@v26.4.2...v26.4.3)

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

yarn.lock

@@ -2478,19 +2478,7 @@ jest-snapshot@^26.6.1:
     pretty-format "^26.6.1"
     semver "^7.3.2"
 
-jest-util@^26.1.0:
-  version "26.6.0"
-  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.6.0.tgz#a81547f6d38738b505c5a594b37d911335dea60f"
-  integrity sha512-/cUGqcnKeZMjvTQLfJo65nBOEZ/k0RB/8usv2JpfYya05u0XvBmKkIH5o5c4nCh9DD61B1YQjMGGqh1Ha0aXdg==
-  dependencies:
-    "@jest/types" "^26.6.0"
-    "@types/node" "*"
-    chalk "^4.0.0"
-    graceful-fs "^4.2.4"
-    is-ci "^2.0.0"
-    micromatch "^4.0.2"
-
-jest-util@^26.6.1:
+jest-util@^26.1.0, jest-util@^26.6.1:
   version "26.6.1"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.6.1.tgz#4cc0d09ec57f28d12d053887eec5dc976a352e9b"
   integrity sha512-xCLZUqVoqhquyPLuDXmH7ogceGctbW8SMyQVjD9o+1+NPWI7t0vO08udcFLVPLgKWcvc+zotaUv/RuaR6l8HIA==
@@ -3867,9 +3855,9 @@ tr46@^2.0.2:
     punycode "^2.1.1"
 
 ts-jest@^26.1.1:
-  version "26.4.2"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.2.tgz#00b6c970bee202ceef7c6e6e9805c4837b22dab8"
-  integrity sha512-0+MynTTzzbuy5rGjzsCKjxHJk5gY906c/FSaqQ3081+G7dp2Yygfa9hVlbrtNNcztffh1mC6Rs9jb/yHpcjsoQ==
+  version "26.4.3"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.3.tgz#d153a616033e7ec8544b97ddbe2638cbe38d53db"
+  integrity sha512-pFDkOKFGY+nL9v5pkhm+BIFpoAuno96ff7GMnIYr/3L6slFOS365SI0fGEVYx2RKGji5M2elxhWjDMPVcOCdSw==
   dependencies:
     "@jest/create-cache-key-function" "^26.5.0"
     "@types/jest" "26.x"