Bump actions/upload-pages-artifact from 2 to 3

Bumps [actions/upload-pages-artifact](https://github.com/actions/upload-pages-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/upload-pages-artifact/releases)
- [Commits](actions/upload-pages-artifact@v2...v3)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/pages.yml

@@ -58,7 +58,7 @@ jobs:
           julia --color=yes docs/make.jl
           grep -rl "footer-message" docs/build/ | xargs sed -i 's@<p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p>@<footer><a href="http://sandia.gov/" rel="noopener noreferrer" target="_blank" style="text-decoration: none"><img alt="Sandia National Laboratories" longdesc="http://sandia.gov" src="https://raw.githubusercontent.com/sandialabs/Polymers/main/pages/assets/images/SNL_Horizontal_White.png" style="height:37px"></a>\&nbsp;\&nbsp;\&nbsp;<a href="http://energy.gov" rel="noopener noreferrer" target="_blank" style="text-decoration: none"><img alt="U.S. Department of Energy" longdesc="http://energy.gov" src="https://raw.githubusercontent.com/sandialabs/Polymers/main/pages/assets/images/New_DOE_Logo_White.png" style="height:37px"></a>\&nbsp;\&nbsp;\&nbsp;<a href="http://nnsa.energy.gov/" rel="noopener noreferrer" target="_blank" style="text-decoration: none"><img alt="National Nuclear Security Administration" longdesc="http://nnsa.gov" src="https://raw.githubusercontent.com/sandialabs/Polymers/main/pages/assets/images/NNSA Logo_White.png" style="height:37px"></a><br><br><div style="font-size: 0.8em">Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy\x27s National Nuclear Security Administration under contract DE-NA-0003525.</div></footer>@'
           cp -r docs/build/* _site/julia/docs/latest/
-      - uses: actions/upload-pages-artifact@v2
+      - uses: actions/upload-pages-artifact@v3
   deploy:
     if: github.event_name != 'pull_request'
     environment: