Bump actions/upload-artifact from 5 to 6 (#1901)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/c-linter.yml

@@ -34,13 +34,13 @@ jobs:
           cppcheck_options: '-U_OPENMP -UAMREX_USE_GPU -UAMREX_USE_CUDA -UAMREX_USE_HIP -U_MSC_VER'
 
       - name: Archive clang tidy report
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: clang-tidy-report
           path: clang-tidy-report.txt
 
       - name: Archive cppcheck report
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: cppcheck-report
           path: cppcheck-report.txt

.github/workflows/castro-development.yml

@@ -78,7 +78,7 @@ jobs:
           PR_NUMBER: ${{ github.event.number }}
         run: |
           echo $PR_NUMBER > pr_number.txt
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: pr_number
           path: pr_number.txt

.github/workflows/castro.yml

@@ -82,7 +82,7 @@ jobs:
           PR_NUMBER: ${{ github.event.number }}
         run: |
           echo $PR_NUMBER > pr_number.txt
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: pr_number
           path: pr_number.txt

.github/workflows/draft-pdf.yml

@@ -17,7 +17,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: paper/paper.md
       - name: Upload
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled