Bump struct-patch from 0.4.1 to 0.8.4

[dependabot[bot]]

Bumps struct-patch from 0.4.1 to 0.8.4.

Commits

• 56fa4e6 bounce version
• 38955ef Add #[patch(add=fn)] (#49)
• fcc6e58 Bump crate-ci/typos from 1.23.6 to 1.24.1 (#48)
• 0497a12 bounce version
• 9fe469f Add #[patch(addable)] (#47)
• bbfb406 bounce version
• 69ae1cd Document and lint (#46)
• 3e98654 feat: Merge trait to merge patches (#45)
• 12c48ee bounce version
• ca92ba6 Add keep_none and none_as_default features (#40)
• Additional commits viewable in compare view

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