build(deps-dev): update dependency conventional-changelog-conventionalcommits to v8

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
conventional-changelog-conventionalcommits (source)	^7.0.2 -> ^8.0.0

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Release Notes

conventional-changelog/conventional-changelog (conventional-changelog-conventionalcommits)

v8.0.0

Compare Source

⚠ BREAKING CHANGES

• Node >= 18 is required
• conventional-recommended-bump: new Bumper exported class (#​1218)
• cleanup presets interface (#​1215)
• conventional-changelog-writer: rewrite to TypeScript (#​1150)
• Now all packages, except gulp-conventional-changelog, are ESM-only.

Features

• cleanup presets interface (#​1215) (0e4f293)
• conventional-changelog-writer: rewrite to TypeScript (#​1150) (8af364f)
• conventional-recommended-bump: new Bumper exported class (#​1218) (0ddc8cd)
• drop node 16 support (#​1226) (ec69cfd)
• move from CommonJS to ESM (#​1144) (c5b859d)

Bug Fixes

• conventional-changelog-conventionalcommits: avoid double empty lines (#​1235) (3b4bfdf), closes #​1188

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