CI(dependabot): Bump actions/upload-artifact from 5 to 6 (#75)

* CI(dependabot): Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

* CI: Clear cache

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Adrien Berchet <adrien.berchet@epfl.ch>

Author: dependabot[bot]

.github/workflows/run-tox.yml

@@ -33,7 +33,7 @@ jobs:
         packages:
           poppler-utils
           imagemagick
-        version: 1.0
+        version: 1.1
     - name: Cache tox and precommit environments
       uses: actions/cache@v4
       with:
@@ -70,7 +70,7 @@ jobs:
         name: "data-validation-framework-py${{ matrix.python-version }}-${{ matrix.min_versions }}"
         token: ${{ secrets.CODECOV_TOKEN }}
     - name: Upload test artifacts
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       if: always()
       with:
         name: tests-${{ matrix.python-version }}-${{ matrix.min_versions }}