chore(deps): update darling requirement from 0.14.2 to 0.20.6

[dependabot]

Updates the requirements on darling to permit the latest version.

Release notes

Sourced from darling's releases.

v0.20.6

• Fix some missing syn invisible group handling in FromMeta impls #263
• Fix misleading error message on Error::unexpected_type so it no longer implies the type was a literal #264
• Impl FromMeta Vec of literals, e.g. LitStr #265

Changelog

Sourced from darling's changelog.

v0.20.6 (February 14, 2024)

• Fix some missing syn invisible group handling in FromMeta impls #263
• Fix misleading error message on Error::unexpected_type so it no longer implies the type was a literal #264
• Impl FromMeta Vec of literals, e.g. LitStr #265

v0.20.5 (January 30, 2024)

• Add Flag::span inherent method, as Flag can no longer impl syn::spanned::Spanned #242

v0.20.4 (January 29, 2024)

• Accept bare paths in #[darling(default = ...)] #258
• Add FromMeta impl for PathBuf #259
• Improve FromMeta implementation for enums #260
  • Properly implement unit arms in FromMeta::from_list to provide a consistent API for heterogeneous enums that include a mix of unit, newtype and struct variants
  • Add #[darling(word)] attribute for unit enum variants (See #63 for details)

v0.20.3 (July 12, 2023)

• Add FromMeta impl for u128 and i128 #243

v0.20.2 (May 25, 2023)

• Allow darling users to omit quotation marks for paths and idents #236
• Add new util functions for controlling how quotation marks are handled when reading into Expr fields #235

v0.20.1 (May 2, 2023)

• Add Clone impl for NestedMeta #230

v0.20.0 (April 27, 2023)

• Bump syn to version 2, courtesy of @​jonasbb #227

Breaking Changes

• Replace all occurrences of syn::NestedMeta with darling::ast::NestedMeta.

• Replacement for the deprecated AttributeArgs:

// Before
parse_macro_input!(args as AttributeArgs);
// After
match NestedMeta::parse_meta_list(args) {
Ok(v) => v,
</tr></table>

... (truncated)

Commits

• 90ceafc Bump version to 0.20.6
• a43190f Add FromMeta for Vec of literals(#265)
• db0e40f Add unit test to confirm negative integer literals work without quotation marks
• 3ee36d9 Fix some missing syn invisible group handling in FromMeta implementations (#263)
• 9decd6a CI: Bump GitHub actions/checkout to v4
• fbcc1b4 Fix misleading error message on UnexpectedType
• 224a866 Bump version to 0.20.5
• 7584023 Add Flag::span inherent method
• 78afea9 Bump version to 0.20.4
• 6118a83 Improve FromMeta implementation for enums (#260)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #135.