chore: release v0.21.0

[mre]

🤖 New release

• lychee-lib: 0.20.1 -> 0.21.0 (⚠ API breaking changes)
• lychee: 0.20.1 -> 0.21.0

⚠ lychee-lib breaking changes

--- failure enum_tuple_variant_field_added: pub enum tuple variant field added ---

Description:
An enum's exhaustive tuple variant has a new field, which has to be included when constructing or matching on this variant.
        ref: https://doc.rust-lang.org/reference/attributes/type_system.html#the-non_exhaustive-attribute
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.43.0/src/lints/enum_tuple_variant_field_added.ron

Failed in:
  field 1 of variant Status::Redirected in /tmp/.tmpya5ScC/lychee/lychee-lib/src/types/status.rs:31

--- failure enum_variant_missing: pub enum variant removed or renamed ---

Description:
A publicly-visible enum has at least one variant 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/v0.43.0/src/lints/enum_variant_missing.ron

Failed in:
  variant ErrorKind::TooManyRedirects, previously in file /tmp/.tmpx906U2/lychee-lib/src/types/error.rs:163

--- failure inherent_method_missing: pub method removed or renamed ---

Description:
A publicly-visible method or associated fn 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/v0.43.0/src/lints/inherent_method_missing.ron

Failed in:
  Input::get_input_sources, previously in file /tmp/.tmpx906U2/lychee-lib/src/types/input.rs:237

Changelog

lychee-lib

0.21.0 - 2025-10-21

Added

• print warning if input source matches no files (#1865)
• (base-url) [breaking] disallow relative local base to avoid confusion (#1857)
• improve InvalidIndexFile error to mention index file names (#1859)

Fixed

• do not reuse excluded status from cache (#1850)
• fields missing from config.toml parsing logic (#1843)
• add support for name attributes in HTML fragment extraction (#1839)

Other

• Bump the dependencies group across 1 directory with 15 updates (#1874)
• Man pages (#1858)
• Extract spans (#1870)
• Remove truncate_source logic (#1847)
• Add --default-extension argument to force file format (#1842)
• hard wrap help text for options (#1854)
• Bump the dependencies group with 6 updates (#1855)
• Additional redirect reporting (#1853)
• Fix extraction of reference links in Markdown (#1841)
• Redirect reporting (#1725)
• Add WinGet installation instructions (#1849)
• [breaking] use ResolvedInputSource downstream of InputContent (#1840)
• Bump the dependencies group with 5 updates (#1845)
• Implement --files-from Option (#1836)
• Optimize InputSource handling with Cow and add benchmarks (#1832)
• Ignore Links in Markdown Link Text (#1831)
• (file checker) separate resolving and checking for easier testing (#1830)
• Refactor Input Handling (#1827)
• Fix links in doc comments (#1828)
• apply fallback extensions if directory links resolve to a dir (#1826)
• clarify --base-url and --root-dir and their interactions (#1787)
• Refactor collector and input (#1823)
• add conda install to readme (#1822)
• Bump the dependencies group with 3 updates (#1821)
• Refactor error reporting (#1731)

lychee

0.21.0 - 2025-10-21

Added

• print warning if input source matches no files (#1865)
• (base-url) [breaking] disallow relative local base to avoid confusion (#1857)
• improve InvalidIndexFile error to mention index file names (#1859)

Fixed

• move log level padding outside brackets (#1871)
• do not reuse excluded status from cache (#1850)
• fields missing from config.toml parsing logic (#1843)

Other

• Do not require inputs with generate flag
• Bump the dependencies group across 1 directory with 15 updates (#1874)
• Inline formatting arguments for anyhow macros as per new lint
• Man pages (#1858)
• Add --default-extension argument to force file format (#1842)
• hard wrap help text for options (#1854)
• Bump the dependencies group with 6 updates (#1855)
• add exhaustivity check for fold_in! macro (#1848)
• Additional redirect reporting (#1853)
• Redirect reporting (#1725)
• Add WinGet installation instructions (#1849)
• [breaking] use ResolvedInputSource downstream of InputContent (#1840)
• Bump the dependencies group with 5 updates (#1845)
• Implement --files-from Option (#1836)
• apply fallback extensions if directory links resolve to a dir (#1826)
• clarify --base-url and --root-dir and their interactions (#1787)
• Add test for making sure URL inputs always get checked (#1824)
• add conda install to readme (#1822)
• Bump the dependencies group with 3 updates (#1821)
• Refactor error reporting (#1731)

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This PR was generated with release-plz.