Merge pull request #13 from schaumb/patch-1

Update actions/checkout and actions/upload-artifact in CI

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - if: ${{ matrix.engine == 'pdflatex' }}
         name: Compile LaTeX document
         uses: xu-cheng/latex-action@v2
@@ -29,7 +29,7 @@ jobs:
           latexmk_shell_escape: true
           latexmk_use_lualatex: true
       - name: Upload the compiled pdf
-        uses: actions/upload-artifact@v2.2.4
+        uses: actions/upload-artifact@v3
         with:
           name: thesis-${{ matrix.engine }}
           path: |