chore(deps): update dependency ts-jest to v29.2.6 (#1033)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

backend/package.json

@@ -76,7 +76,7 @@
     "prettier": "3.5.2",
     "source-map-support": "0.5.21",
     "supertest": "7.0.0",
-    "ts-jest": "29.2.5",
+    "ts-jest": "29.2.6",
     "ts-loader": "9.5.2",
     "ts-node": "10.9.2",
     "tsconfig-paths": "4.2.0",