[CI] Update Stack version in OTel tests

Author: picandocodigo

.github/workflows/otel.yml

@@ -28,7 +28,7 @@ jobs:
           sudo sysctl -w vm.max_map_count=262144
       - uses: elastic/elastic-github-actions/elasticsearch@master
         with:
-          stack-version: 8.12.0-SNAPSHOT
+          stack-version: 8.13.0-SNAPSHOT
           security-enabled: false
       - uses: ruby/setup-ruby@v1
         with:
@@ -42,4 +42,4 @@ jobs:
       - name: elasticsearch
         run: cd elasticsearch && bundle exec rake test:all
       - name: elasticsearch-api
-        run: rake elasticsearch:download_artifacts[8.12.0-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit
+        run: rake elasticsearch:download_artifacts[8.13.0-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit