ci: bump actions/upload-artifact from 3 to 4 (#129)

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/ci.yml

@@ -106,7 +106,7 @@ jobs:
             1.20.4
           java: 17
       - name: 'Upload GitHub Artifact 📦'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: success() || failure()
         with:
           name: Velocitab

.github/workflows/release.yml

@@ -95,7 +95,7 @@ jobs:
             1.20.4
           java: 17
       - name: 'Upload GitHub Artifacts 📦'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Velocitab
           path: target/Velocitab-*.jar