add managed schema for subscription management #3602

Job	Run time
build-run-image (blacksmith-32vcpu-ubuntu-2404, amd64)	3m 12s
build-run-image (blacksmith-32vcpu-ubuntu-2404-arm, arm64)	3m 57s
build-run-image (macos-latest-xlarge, arm64)	4m 2s
run-tests / prepare	40s
run-testinfra / prepare	35s
run-tests / build ("orioledb-17")	1m 31s
run-tests / build ("17")	1m 34s
run-tests / build ("15")	1s
run-testinfra / test-ami-nix ("15")	18m 29s
run-testinfra / test-ami-nix ("17")	18m 28s
run-testinfra / test-ami-nix ("orioledb-17")	16m 56s
	1h 9m 25s

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