build(deps-dev): bump ts-jest from 26.5.3 to 26.5.4

Bumps [ts-jest](https://github.com/kulshekhar/ts-jest) from 26.5.3 to 26.5.4.
- [Release notes](https://github.com/kulshekhar/ts-jest/releases)
- [Changelog](https://github.com/kulshekhar/ts-jest/blob/master/CHANGELOG.md)
- [Commits](kulshekhar/ts-jest@v26.5.3...v26.5.4)

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

package.json

@@ -71,7 +71,7 @@
     "remark-lint-no-dead-urls": "^1.1.0",
     "remark-preset-lint-recommended": "^5.0.0",
     "standard-version": "^9.1.1",
-    "ts-jest": "^26.5.3",
+    "ts-jest": "^26.5.4",
     "typescript": "^4.2.3",
     "webpack": "^4.44.2"
   }