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/acceptance.yml

@@ -88,14 +88,14 @@ jobs:
       - run: make ci-acceptance-test
 
       # Upload Cypress screenshots
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: cypress-screenshots-acceptance
           path: acceptance/cypress/screenshots
 
       # Upload Cypress videos
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         if: failure()
         with:
           name: cypress-videos-acceptance