Bump actions/upload-artifact from 4 to 5 (#277)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/doc.yaml

@@ -33,7 +33,7 @@ jobs:
       - run: mne_icalabel-sys_info --developer
       - run: sphinx-build ./main/doc ./doc-build/dev -W --keep-going
       - run: sudo rm -R ./doc-build/dev/.doctrees
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: doc-dev
           path: ./doc-build/dev

.github/workflows/draft-pdf.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           journal: joss
           paper-path: paper/paper.md
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: paper
           path: paper/paper.pdf