Update darling requirement from 0.13.1 to 0.14.4

[dependabot]

Updates the requirements on darling to permit the latest version.

Release notes

Sourced from darling's releases.

v0.14.4

• Add support for child diagnostics when diagnostics feature enabled #224

Changelog

Sourced from darling's changelog.

v0.14.4 (March 9, 2023)

• Add support for child diagnostics when diagnostics feature enabled #224

v0.14.3 (February 3, 2023)

• Re-export syn from darling to avoid requiring that consuming crates have a syn dependency.
• Change <SpannedValue<T> as FromMeta> impl to more precisely capture the value span, as opposed to the span of the entire item.
• Add darling::util::{AsShape, Shape, ShapeSet} to improve "shape" validation for structs and variants. #222

v0.14.2 (October 26, 2022)

• Derived impls of FromMeta will now error on literals, rather than silently ignoring them. #193
• Don't include property paths in compile errors when spans are available. #203

v0.14.1 (April 28, 2022)

• Fix a bug where using a trait that accepts #[darling(attributes(...))] without specifying any attributes would emit code that did not compile. #183
• Impl Clone for darling::Error #184
• Impl From<darling::Error> for syn::Error #184
• Add Error::span and Error::explicit_span methods #184

v0.14.0 (April 13, 2022)

• BREAKING CHANGE: Remove many trait impls from util::Flag. This type had a number of deref and operator impls that made it usable as sort-of-a-boolean. Real-world usage showed this type is more useful if it's able to carry a span for good errors, and that most of those impls were unnecessary. #179
• Remove need for #[darling(default)] on Option<T> and Flag fields #161
• Improve validation of enum shapes #178
• Bump proc-macro2 dependency to 1.0.37 #180
• Bump quote dependency to 1.0.18 #180
• Bump syn dependency to 1.0.91 #180

v0.13.4 (April 6, 2022)

• Impl FromMeta for syn::Visibility #173

v0.13.3 (April 5, 2022)

• Add error::Accumulator for dealing with multiple errors #164
• Impl FromMeta for syn::Type and its variants #172

v0.13.2 (March 30, 2022)

• Impl FromMeta for syn::ExprPath #169

v0.13.1 (December 7, 2021)

• Add FromAttributes trait and macro #151

... (truncated)

Commits

• 4186e42 Bump version to 0.14.4
• 92abd90 Add child diagnostics
• 05de479 Bump version to 0.14.3
• 49f05ee Use darling::util::Shape in generated code
• 7e80119 Add Error::unsupported_shape_with_expected
• a4c0e95 Add Shape, AsShape, and ShapeSet to darling::util
• b20560b Update compiletests
• 5737e54 Update Swatinem/rust-cache to v2
• cfc4cf7 Update actions/checkout to v3
• 3310c28 Use dtolnay/rust-toolchain
• Additional commits viewable in compare view

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[dependabot]

Superseded by #37.