Bump actions/upload-artifact from 3 to 4 (#407)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  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>

.github/workflows/build.yml

@@ -53,7 +53,7 @@ jobs:
       - name: Run build script
         run: msys2 -c 'export SIMPLE64_AUTOUPDATE=1; export NETPLAY_AUTH_CODE=${{ secrets.NETPLAY_AUTH_CODE }}; ./build.sh zip'
       - name: Upload zip
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: simple64-win64
           path: simple64-*.zip
@@ -71,7 +71,7 @@ jobs:
         run: |
           sudo sh ./build.sh
       - name: Upload dmg
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: simple64-osx
           path: simple64/simple64-*.dmg