Add `reuse()` to `Attribute` for field evolution #1531

Job	Run time
Build & verify package	14s
Check types using pyright	13s
Verify dev env	43s
Tests on pypy-3.10	17s
Run doctests & render changelog	14s
Tests & Mypy on 3.8	29s
Tests & Mypy on 3.12	43s
Tests & Mypy on 3.13	1m 1s
Tests & Mypy on 3.11	44s
Tests & Mypy on 3.9	21s
Tests & Mypy on 3.10	57s
Combine & check coverage	9s
required-checks-pass	4s
	6m 9s

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