⬆️ Bump actions/upload-artifact from 4 to 5 (#420)

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/cache.yml

@@ -23,13 +23,13 @@ jobs:
         run: |
           jb build lectures --path-output ./ -W --keep-going
       - name: Upload Execution Reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports
           path: _build/html/reports
       - name: Upload "_build" folder (cache)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: build-cache
           path: _build

.github/workflows/ci.yml

@@ -59,7 +59,7 @@ jobs:
         run: |
           jb build lectures --path-output ./ -n -W --keep-going
       - name: Upload Execution Reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports

.github/workflows/execution-linux.yml

@@ -32,7 +32,7 @@ jobs:
         shell: bash -l {0}
         run: jb build lectures --path-output=./ -W --keep-going
       - name: Upload Execution Reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports

.github/workflows/execution-osx.yml

@@ -32,7 +32,7 @@ jobs:
         shell: bash -l {0}
         run: jb build lectures --path-output=./ -W --keep-going
       - name: Upload Execution Reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports

.github/workflows/execution-win.yml

@@ -37,7 +37,7 @@ jobs:
         shell: powershell
         run: jb build lectures --path-output=./ -W --keep-going
       - name: Upload Execution Reports
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         if: failure()
         with:
           name: execution-reports

.github/workflows/publish.yml

@@ -61,7 +61,7 @@ jobs:
         run: |
           jb build lectures --path-output ./ --builder=custom --custom-builder=jupyter -n -W --keep-going
           zip -r download-notebooks.zip _build/jupyter
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: download-notebooks
           path: download-notebooks.zip