Bump ts-jest from 24.1.0 to 26.4.1 (#249)

Bumps [ts-jest](https://github.com/kulshekhar/ts-jest) from 24.1.0 to 26.4.1.
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md)
- [Commits](kulshekhar/ts-jest@v24.1.0...v26.4.1)

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package.json

@@ -82,7 +82,7 @@
     "react-click-outside": "^3.0.0",
     "react-color": "^2.18.1",
     "react-dom": "^16.9.0",
-    "ts-jest": "^24.1.0",
+    "ts-jest": "^26.4.1",
     "ts-loader": "^6.0.4",
     "typescript": "^3.9.7",
     "webpack": "^4.39.1",