chore(embedded/sql): support for simple case statements #4105

Job	Run time
Run Gosec Security Scanner	1m 32s
Coverage	6m 19s
build-and-test (ubuntu-latest, 1.17)	1m 5s
build-and-test (ubuntu-latest, 1.18, true)	3m 38s
performance-test-suite-detect-runners	1s
build-and-test (ubuntu-latest, 1.18, true)	4m 17s
Coverage	0s
build-and-test (ubuntu-latest, 1.19, true)	3m 28s
build-and-test (windows-latest, 1.18, true, true)	2m 0s
build-and-test (macos-latest, 1.18, true)	1m 6s
Performance Test Suite (github-ubuntu-latest)	3m 29s
	26m 55s

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