Refined the expression serialization context and its deserialization method for more extensive usage. Also, simplified the handling of value retrieval in the DefaultExpressionDescriptorProvider. This allows greater control over serialization processes and makes the code more concise.
* Improve Elsa workflow expression serialization
Added serialization support for expressions in Elsa workflows, enabling serialization and deserialization to maintain consistent types across sessions. Updated relevant test cases for validation.
* Remove PR workflow from GitHub actions
The PR workflow has been removed from GitHub actions.