Bump ts-jest from 26.4.3 to 26.4.4

Bumps [ts-jest](https://github.com/kulshekhar/ts-jest) from 26.4.3 to 26.4.4.
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md)
- [Commits](kulshekhar/ts-jest@v26.4.3...v26.4.4)

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

yarn.lock

@@ -354,11 +354,6 @@
     slash "^3.0.0"
     strip-ansi "^6.0.0"
 
-"@jest/create-cache-key-function@^26.5.0":
-  version "26.5.0"
-  resolved "https://registry.yarnpkg.com/@jest/create-cache-key-function/-/create-cache-key-function-26.5.0.tgz#1d07947adc51ea17766d9f0ccf5a8d6ea94c47dc"
-  integrity sha512-DJ+pEBUIqarrbv1W/C39f9YH0rJ4wsXZ/VC6JafJPlHW2HOucKceeaqTOQj9MEDQZjySxMLkOq5mfXZXNZcmWw==
-
 "@jest/environment@^26.3.0":
   version "26.3.0"
   resolved "https://registry.yarnpkg.com/@jest/environment/-/environment-26.3.0.tgz#e6953ab711ae3e44754a025f838bde1a7fd236a0"
@@ -4259,11 +4254,10 @@ tr46@^2.0.2:
     punycode "^2.1.1"
 
 ts-jest@^26.0.0:
-  version "26.4.3"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.3.tgz#d153a616033e7ec8544b97ddbe2638cbe38d53db"
-  integrity sha512-pFDkOKFGY+nL9v5pkhm+BIFpoAuno96ff7GMnIYr/3L6slFOS365SI0fGEVYx2RKGji5M2elxhWjDMPVcOCdSw==
+  version "26.4.4"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.4.4.tgz#61f13fb21ab400853c532270e52cc0ed7e502c49"
+  integrity sha512-3lFWKbLxJm34QxyVNNCgXX1u4o/RV0myvA2y2Bxm46iGIjKlaY0own9gIckbjZJPn+WaJEnfPPJ20HHGpoq4yg==
   dependencies:
-    "@jest/create-cache-key-function" "^26.5.0"
     "@types/jest" "26.x"
     bs-logger "0.x"
     buffer-from "1.x"