Bump ncipollo/release-action from 1.20.0 to 1.21.0 (#1929)

Bumps [ncipollo/release-action](https://github.com/ncipollo/release-action) from 1.20.0 to 1.21.0.
- [Release notes](https://github.com/ncipollo/release-action/releases)
- [Commits](ncipollo/release-action@v1.20.0...v1.21.0)

---
updated-dependencies:
- dependency-name: ncipollo/release-action
  dependency-version: 1.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Even Solbraa <41290109+EvenSol@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/release_with_jars.yml

@@ -137,7 +137,7 @@ jobs:
           name: jarfiles-java21
 
       - name: Create release v${{ needs.get_versions.outputs.version_8 }}
-        uses: ncipollo/release-action@v1.20.0
+        uses: ncipollo/release-action@v1.21.0
         with:
           name: NeqSim ${{ needs.get_versions.outputs.version_8 }}
           tag: v${{ needs.get_versions.outputs.version_8 }}