Change failing C++ api validation signal to blocking (facebook#56503)

Summary:
Pull Request resolved: facebook#56503

Changelog: [Internal]

Changes the signals pointing out C++ api snapshot not being updated to be blocking.

Commits the new baseline snapshots

Reviewed By: cipolleschi, cortinico

Differential Revision: D101617655

fbshipit-source-id: 8836cb55292ab2e3fa0b696d289f9bd0daf46dec

Author: j-piasecki

.github/workflows/validate-cxx-api-snapshots.yml

@@ -73,9 +73,9 @@ jobs:
         run: pip install doxmlparser natsort pyyaml
       - name: Validate C++ API snapshots
         shell: bash
-        continue-on-error: true
         run: yarn cxx-api-validate --output-dir /tmp/cxx-api-snapshots
       - name: Upload C++ API snapshots
+        if: always()
         uses: actions/upload-artifact@v6
         with:
           name: cxx-api-snapshots