Tests

chore: pub.dev polish — CHANGELOGs, topics, README footer, gitignore #23

Job	Run time
Run Tests (windows-latest, stable)	1m 32s
Run Tests (macos-latest, beta)	1m 18s
Run Tests (ubuntu-latest, stable)	1m 15s
Run Tests (windows-latest, beta)	1m 31s
Run Tests (macos-latest, stable)	1m 30s
Run Tests (ubuntu-latest, beta)	1m 30s
	8m 36s

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