Merge pull request #548 from astropy/dependabot/github_actions/actions/upload-artifact-3

Bump actions/upload-artifact from 2 to 3

Author: adrn

.github/workflows/build.yml

@@ -40,7 +40,7 @@ jobs:
         run: |
           echo "::set-output name=artifactName::rendered-tutorials"
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           name: ${{ steps.nameartifact.outputs.artifactName }}
           path: _build