Bump rubygems/configure-rubygems-credentials from 2.0.0 to 2.1.0

Bumps [rubygems/configure-rubygems-credentials](https://github.com/rubygems/configure-rubygems-credentials) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/rubygems/configure-rubygems-credentials/releases)
- [Commits](rubygems/configure-rubygems-credentials@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: rubygems/configure-rubygems-credentials
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/gem_release.yaml

@@ -76,7 +76,7 @@ jobs:
         uses: actions/download-artifact@v8
         with:
           name: gem-artifact
-      - uses: rubygems/configure-rubygems-credentials@v2.0.0
+      - uses: rubygems/configure-rubygems-credentials@v2.1.0
       - name: Publish gem to rubygems.org
         shell: bash
         run: gem push *.gem