Bump actions/upload-artifact from 6 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/integration-tests.yml

@@ -52,7 +52,7 @@ jobs:
           install_extras: false
 
       - name: Upload Example Plots Artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: example-notebooks-${{ matrix.example_name }}
           path: ${{ steps.example-run.outputs.notebook-path }}
@@ -70,7 +70,7 @@ jobs:
           merge-multiple: true
 
       - name: Upload Example Plots Artifact
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: example-notebooks
           path: example-notebooks