chore: release v0.20.0

[mre]

🤖 New release

• lychee-lib: 0.19.1 -> 0.20.0 (⚠ API breaking changes)
• lychee: 0.19.1 -> 0.20.0

⚠ lychee-lib breaking changes

--- failure auto_trait_impl_removed: auto trait no longer implemented ---

Description:
A public type has stopped implementing one or more auto traits. This can break downstream code that depends on the traits being implemented.
        ref: https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/auto_trait_impl_removed.ron

Failed in:
  type Collector is no longer UnwindSafe, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/collector.rs:22
  type Collector is no longer RefUnwindSafe, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/collector.rs:22
  type Collector is no longer UnwindSafe, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/collector.rs:22
  type Collector is no longer RefUnwindSafe, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/collector.rs:22

--- failure method_parameter_count_changed: pub method parameter count changed ---

Description:
A publicly-visible method now takes a different number of parameters.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#fn-change-arity
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/method_parameter_count_changed.ron

Failed in:
  lychee_lib::Input::new now takes 4 parameters instead of 5, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/types/input.rs:123
  lychee_lib::Input::get_contents now takes 6 parameters instead of 5, in /tmp/.tmpLX4uOo/lychee/lychee-lib/src/types/input.rs:216

--- failure struct_pub_field_missing: pub struct's pub field removed or renamed ---

Description:
A publicly-visible struct has at least one public field that is no longer available under its prior name. It may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#item-remove
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.41.0/src/lints/struct_pub_field_missing.ron

Failed in:
  field headers of struct Input, previously in file /tmp/.tmpxIejhe/lychee-lib/src/types/input.rs:114

Changelog

lychee-lib

0.20.0 - 2025-07-04

Added

• add 'user-content-' prefix to support github markdown fragment (#1750)

Fixed

• treat a fragment in an empty directory as an error (#1756)
• resolve index file inside a directory (#1752)
• skip fragment check if website URL doesn't contain fragment (#1733)

Other

• Fix basic auth (#1748)
• Update 'Users' section in the README
• Add ProseKit to users
• Migrate to Clippy 1.88 (#1749)
• Add xml schema found in xsd files to list of exclusions (#1735)

lychee

0.20.0 - 2025-07-04

Added

• add 'user-content-' prefix to support github markdown fragment (#1750)

Fixed

• treat a fragment in an empty directory as an error (#1756)
• resolve index file inside a directory (#1752)
• skip fragment check if website URL doesn't contain fragment (#1733)

Other

• Fix basic auth (#1748)
• Update 'Users' section in the README
• Add ProseKit to users
• Migrate to Clippy 1.88 (#1749)
• fix assertion in fragment checks
• Replace unreliable API URL
• display unsupported URLs (#1727)

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This PR was generated with release-plz.