[Rust] Release 0.29.0

Breaking Changes

• All builder methods on ValidationOptions now take ownership of self instead of &mut self.
  This change enables better support for non-blocking retrieval of external resources during the process of building a validator.
  Update your code to chain the builder methods instead of reusing the options instance:

  // Before (0.28.x)
  let mut options = jsonschema::options();
  options.with_draft(Draft::Draft202012);
  options.with_format("custom", my_format);
  let validator = options.build(&schema)?;
  
  // After (0.29.0)
  let validator = jsonschema::options()
      .with_draft(Draft::Draft202012)
      .with_format("custom", my_format)
      .build(&schema)?;

• The Retrieve trait's retrieve method now accepts URI references as &Uri<String> instead of &Uri<&str>.
  This aligns with the async version and simplifies internal URI handling. The behavior and available methods remain the same, this is purely a type-level change.

  // Before
  fn retrieve(&self, uri: &Uri<&str>) -> Result<Value, Box<dyn std::error::Error + Send + Sync>>
  
  // After
  fn retrieve(&self, uri: &Uri<String>) -> Result<Value, Box<dyn std::error::Error + Send + Sync>>

• Simplified Registry creation API:

  • Removed RegistryOptions::try_new and RegistryOptions::try_from_resources in favor of Registry::build
  • Removed Registry::try_with_resource_and_retriever - use Registry::options().retriever() instead
  • Registry creation is now consistently done through the builder pattern

  // Before (0.28.x)
  let registry = Registry::options()
      .draft(Draft::Draft7)
      .try_new(
          "http://example.com/schema",
          resource
      )?;
  
  let registry = Registry::options()
      .draft(Draft::Draft7)
      .try_from_resources([
          ("http://example.com/schema", resource)
      ].into_iter())?;
    
  let registry = Registry.try_with_resource_and_retriever(
      "http://example.com/schema",
      resource,
      retriever
  )?;
  
  // After (0.29.0)
  let registry = Registry::options()
      .draft(Draft::Draft7)
      .build([
          ("http://example.com/schema", resource)
      ])?;
  
  let registry = Registry::options()
      .draft(Draft::Draft7)
      .build([
          ("http://example.com/schema", resource)
      ])?;
  
  let registry = Registry::options()
      .retriever(retriever)
      .build(resources)?;

Added

• Support non-blocking retrieval for external resources during schema resolution via the new resolve-async feature. #385
• Re-export referencing::Registry as jsonschema::Registry.
• ValidationOptions::with_registry that allows for providing a predefined referencing::Registry. #682

Performance

• Significantly improved validator compilation speed by using pointer-based references to schema fragments instead of cloning them during traversal.
• Faster anchors & sub-resources lookups during validator compilation.