[joshfactorial]

Summary

• Retitles the ChangeLog's "Unreleased" section as v4.8.0 and adds a one-paragraph summary. The entry covers the Repeating adapter sequences #344 adapter-readthrough fix merged in Stop adapter readthrough from repeating the adapter (#344) #345.
• Bumps pyproject.toml version to 4.8.0. This is a minor bump because Stop adapter readthrough from repeating the adapter (#344) #345 adds a config option, adapter_overrun.
• No code changes. The fix is already on main; this only prepares the release notes and version for tagging.

Compatibility

• Runs without adapters produce the same output as v4.7.1.
• Seeded adapter runs where a read's tail extends past the adapter will differ from v4.7.1, as intended.

Test plan

• Unit suite on this branch: 932 passed, 68 skipped (integration, opt-in)
• NEAT_INTEGRATION=1 pytest tests/integration: 65 passed
• No other file references the 4.7.1 version string
• Merge and tag 4.8.0

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