chore(deps): bump actions/upload-artifact from 3 to 4 (#16)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/entrainement.yml

@@ -17,15 +17,15 @@ jobs:
       run: |
         sh results/run.sh
     - name: Upload results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: results
         path: results/*.csv
     - name: Train
       run: |
         sh scripts/retrain.sh
     - name: Upload models
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: models
         path: alexi/models/