chore: Add codecov config (#724) #8

Job	Run time
Code checks / Spell check	5s
Code checks / Actions lint check	29s
Doc checks / Doc checks / Docs check	54s
Code checks / Lint check / Lint check (3.11)	9s
Code checks / Lint check / Lint check (3.13)	11s
Code checks / Lint check / Lint check (3.10)	10s
Code checks / Lint check / Lint check (3.12)	12s
Code checks / Lint check / Lint check (3.14)	9s
Code checks / Type check / Type check (3.12)	7s
Code checks / Type check / Type check (3.13)	14s
Code checks / Type check / Type check (3.11)	7s
Code checks / Type check / Type check (3.10)	9s
Tests / Integration tests / Integration tests (ubuntu-latest, 3.14)	8m 9s
Tests / Integration tests / Integration tests (ubuntu-latest, 3.10)	9m 2s
Code checks / Type check / Type check (3.14)	7s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.10)	40s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	37s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	59s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	42s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	54s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	1m 1s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	1m 28s
Tests / Unit tests / Unit tests (windows-latest, 3.10)	59s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	44s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	37s
Doc release	0s
Release prepare	20s
Changelog update / bump_and_update_changelog	15s
PyPI publish	27s
Doc release post publish / Doc release	1m 46s
	31m 43s

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