Tests

Document behavior of INSERT with RETURNING through tests (#556) #1313

Job	Run time
Main Tests (windows-latest, 1.24)	1m 49s
Main Tests (macos-13, 1.24)	38s
Test Arrow (ubuntu-latest, 1.24)	53s
Test Examples (macos-latest, 1.24)	24s
Main Tests (macos-latest, 1.24)	28s
Test Arrow (macos-latest, 1.24)	43s
Main Tests (ubuntu-24.04-arm, 1.24)	35s
Main Tests (ubuntu-latest, 1.24)	46s
Test Arrow (windows-latest, 1.24)	2m 10s
Dynamic Lib Tests (1.24, ubuntu-latest)	39s
Dynamic Lib Tests (1.24, macos-13)	29s
Static Lib Tests Darwin ARM64 (1.24)	28s
Test Examples (ubuntu-latest, 1.24)	20s
Dynamic Lib Tests (1.24, ubuntu-24.04-arm)	24s
Dynamic Lib Tests (1.24, macos-14)	36s
	11m 22s

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