chore: release v0.13.0

[github-actions]

🤖 New release

• hypertext-macros: 0.12.1 -> 0.13.0
• hypertext: 0.12.1 -> 0.13.0 (⚠ API breaking changes)

⚠ hypertext breaking changes

--- 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/v0.46.0/src/lints/inherent_method_missing.ron

Failed in:
  Buffer::as_attribute_buffer, previously in file /tmp/.tmpfLLiXZ/hypertext/src/alloc/mod.rs:84

--- failure trait_method_missing: pub trait method removed or renamed ---

Description:
A trait method is no longer callable, and may have been renamed or removed entirely.
        ref: https://doc.rust-lang.org/cargo/reference/semver.html#major-any-change-to-trait-item-signatures
       impl: https://github.com/obi1kenobi/cargo-semver-checks/tree/v0.46.0/src/lints/trait_method_missing.ron

Failed in:
  method render of trait Renderable, previously in file /tmp/.tmpfLLiXZ/hypertext/src/alloc/mod.rs:223
  method render of trait Renderable, previously in file /tmp/.tmpfLLiXZ/hypertext/src/alloc/mod.rs:223

Changelog

hypertext

0.13.0 - 2026-03-08

Added

• huge refactor

Fixed

• re-add @youwen5 site
• docs
• ci

Other

• Using builder for component instantiation (#183)
• optional attrs (closes Document optional attributes #182)
• Add HTMX attributes for SSE and WS extensions (#177)
• fmt
• Add my website to "Projects using hypertext" (#161)

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This PR was generated with release-plz.