Hotfix installation

Please make sure you consult the page Hotfix Installation Notes for any additional actions needed to complete the installation.

Main correction(s) provided

• JsonWebengineWriter no longer produces random NullPointerException when serializing exceptions
• Opensearch1 UIDGen package can be deployed with default configuration
• Search.Index automation operation can now redindex a given document (along with its descendants)
• Fetching an invalid async automation status now returns 404 HTTP status code
• REST Automation now returns HTTP 400 Bad Request if body is not valid
• WebEngine root is only displayed when "org.nuxeo.dev" mode is enabled

Task(s)

• Portal SSO authentication was deprecated in favor of OAuth 2.0 Client Credentials flow.
• The Client Credentials flow is now available in the OAuth 2.0 implementation.
• FFMpeg can now be installed in the Nuxeo Docker image from the RPM Fusion repository.

Improvement(s)

• BatchManager now returns a 410 HTTP Status Code (Gone) when trying to add blob to a batch that has been canceled
• Management API access could now be configured with a Nuxeo Group
• A new nuxeo.startup.fail.on.missing.schema configuration property is available to prevent the Nuxeo server from starting if a schema is not found