Allow forward-references on 3.14 #1633

Job	Run time
Build & verify package	21s
Check types using pyright	13s
Verify dev env	9s
Tests on pypy-3.10	22s
Tests & Mypy on 3.9	26s
Tests & Mypy on 3.12	1m 4s
Tests & Mypy on 3.10	1m 8s
Tests & Mypy on 3.11	58s
Tests & Mypy on 3.14	2m 9s
Tests & Mypy on 3.13	1m 4s
Run doctests & render changelog	18s
Combine & check coverage	10s
required-checks-pass	3s
	8m 25s

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