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

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

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

.github/workflows/Build All.yml

@@ -20,7 +20,7 @@ jobs:
           arch: x86
       - run: '& msbuild /m /p:Configuration=Release MagPython\MagPython.metaproj'
       - run: 'cd MagPython && ren Release MagPython && 7z a -r ..\MagPython.zip MagPython'
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         if: success()
         with:
           name: build-artifacts