Bump actions/upload-artifact from 3 to 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] <support@github.com>

.github/workflows/tools.yml

@@ -54,7 +54,7 @@ jobs:
       - run: make
       - run: sudo make install
       - run: make osx-dmg
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: "*.dmg"
 
@@ -81,6 +81,6 @@ jobs:
           cp gambit* installer
           "${WIX}bin/candle" gambit.wxs
           "${WIX}bin/light" -ext WixUIExtension gambit.wixobj
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: "*.msi"

.github/workflows/wheels.yml

@@ -26,6 +26,6 @@ jobs:
           python -m cibuildwheel --output-dir wheelhouse/
         env:
           CIBW_SKIP: "pp*"
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl