chore(deps): update rust crate apollo-smith to 0.16.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
apollo-smith	workspace.dependencies	minor	0.15.2 → 0.16.0

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Release Notes

apollographql/apollo-rs (apollo-smith)

v0.16.0

Compare Source

0.16.0 - 2026-07-21

BREAKING

• Make response generation configurable - SharkBaitDLS, tninesling, pull/1033

  ResponseBuilder now supports with_min_list_size, with_max_list_size, and
  with_null_ratio to control the shape of generated responses, plus with_generator
  to register a custom Generator for any scalar, object, interface, or union
  type by name. It can also be driven by either arbitrary::Unstructured or a
  standard rand::Rng (via the new RandProvider wrapper), so the same builder
  works for both fuzz testing and general-purpose mock data. The primary breaking
  change is that ResponseBuilder is now generic over its randomness source,
  and its error type changed to ResponseError.

• Improve byte efficiency for type and field name generation - tninesling, pull/1040

  This change makes document generation more efficient by using Unstructured::choose
  when building type names from characters, instead of generating a random
  usize and indexing into the character set. This mitigates cases where the
  generator would consume all bytes in the sequence before finishing the
  document, resulting in only one instance of each type. There is no breaking
  change to the API, but it does change the name selections chosen for types and
  therefore changes the generated documents.

• Pass the correct directive location to input_values_def - tninesling, pull/1053

  This change adds a new directive location parameter to DocumentBuilder::input_values_def.
  This specifying whether it is generating an input value definition for an
  argument or an input object field. This is necessary to ensure that the
  correct directives are applied to the generated input value definition.

• Make upper bounds for type counts configurable - tninesling, pull/1054

  Previously, the document generator would create up to 50 instances of each type kind. Now,
  you can specify the upper bound for how many of each type are generated.

  let builder = DocumentBuilder::new().max_scalar_types(75);

  The breaking change is that the constructor now infallibly returns a builder
  instead of a partial document, which allows chaining these type count bounds
  before document generation. In order to provide a more standardized API, the
  previous API's .finish() method is replaced with the more usual .build().

  Before

  let mut u = Unstructured::new(fuzzer_input);
  let gql_doc = DocumentBuilder::new(&mut u)?;
  let doc = gql_doc.finish();

  After

  let mut u = Unstructured::new(fuzzer_input);
  let builder = DocumentBuilder::new(&mut u);
  let doc = builder.build()?;

• Prevent extensions from duplicating existing values - tninesling, pull/1057

  Adds a new exclude parameter to DocumentBuilder::enum_values_definition and
  DocumentBuilder::input_values_def, plus the argument of the same name in
  DocumentBuilder::fields_definition is now an IndexSet instead of &[&Name]
  to match the other two.

  When generating the initial definition for any of these, an empty IndexSet
  should be passed. They are used internally when generating extensions to
  to existing types, ensuring that an extension does not duplicate some
  already-chosen field or value from the base definition.

• Prevent non-null self-references in input objects - tninesling, pull/1062

  The DocumentBuilder::input_values_def function now takes a self_name: Option<&Name>
  parameter so inner value definitions do not choose a non-null value of the type
  being generated, which would otherwise cause an impossible cycle.

Fixes

• Ensure type names are unique across all type kinds - tninesling, pull/1045, pull/1058, and pull/1063
• Choose input definition types from valid input types - tninesling, pull/1046
• Ensure scalar and union extensions correctly extend original types - tninesling, pull/1047
• Ensure generated documents do not have unused fragment definitions - tninesling, pull/1048
• Allow directive applications when only one directive is defined - duckki, pull/1049
• Generate valid interface inheritance - tninesling, pull/1050
• Produce schemas with valid root operation types - tninesling, pull/1051
• Restrict union members to object types - tninesling, pull/1052
• Disable alias generation to avoid field selection merging conflicts - tninesling, pull/1059
• Fix fragment spread and argument selection merging - tninesling, pull/1060

Maintenance

• update dependency rust to v2 - pull/1055
• update dependency gh to v3 - pull/1056
• update rust crate anyhow to 1.0.103 - pull/1064

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