chore(deps): update actions/upload-artifact action to v6 (#304)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/swagger-release.yml

@@ -48,7 +48,7 @@ jobs:
       - name: Generate swagger spec
         run: deno task swagger:generate
       - name: Upload swagger spec artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: swagger-spec
           path: .github/swagger-spec.json