Bump actions/upload-artifact from 4 to 6 (#902)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  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>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
           # TODO: needs build step
           sha256sum bin/lucky | awk '{print $1}' > ./bin/checksums.txt
           tar -czvf lucky-$GITHUB_REF_NAME-linux-amd64.tar.gz -C ./bin .
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: linux
           path: lucky-${{ github.ref_name }}-linux-amd64.tar.gz
@@ -42,7 +42,7 @@ jobs:
           shards build lucky --without-development --no-debug --release --static
           (Get-FileHash ./bin/lucky).Hash | Out-File ./bin/checksums.txt
           Compress-Archive -Path ./bin/* -DestinationPath lucky-$env:GITHUB_REF_NAME-windows-amd64.zip
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: windows
           path: lucky-${{ github.ref_name }}-windows-amd64.zip