Update boost exercise

Author: uekerman

05_testing_and_ci/boost_testing_exercise.md

@@ -1,12 +1,12 @@
 # Boost.Test and CTest in Action: SideMade Exercise
 
-In this exercise, you extend and automate the unit tests of the [SideMade code](https://github.com/Simulation-Software-Engineering/testing-boost-exercise-wt2425), on which we worked during the lecture.
+In this exercise, you extend and automate the unit tests of the [SideMade code](https://github.com/Simulation-Software-Engineering/testing-boost-exercise), on which we worked during the lecture.
 
-Deadline: **Thursday, February 5, 2025, 09:00**
+Deadline: **Thursday, February 4, 2026, 09:00**
 
 ## Preparation and Submission
 
-- Import the [testing boost exercise repository](https://github.com/Simulation-Software-Engineering/testing-boost-exercise-wt2425) in your own account/namespace on GitHub and name it `testing-boost-exercise` again. **Note**: We cannot work with forks here because GitHub Actions may not work in pull requests without explicit approval of the owner of the target repository
+- Import the [testing boost exercise repository](https://github.com/Simulation-Software-Engineering/testing-boost-exercise) in your own account/namespace on GitHub and name it `testing-boost-exercise` again. **Note**: We cannot work with forks here because GitHub Actions may not work in pull requests without explicit approval of the owner of the target repository
 - Create a new branch `extend-tests` from `main` and work in this branch.
 - To submit, open a PR from `extend-tests` to `main` in your own repository. Then paste a link to this PR in a new issue in the original repository. Use `[GITLAB-USERNAME] Boost test exercise` as title of the issue.