fix(ci): add PostgreSQL for packages/internal integration tests #5525

Job	Run time
build-and-check	2m 34s
test-integration-sdk	48s
test-integration-packages/internal	1m 2s
test-integration-cli	40s
test-integration-packages/agent-runtime	48s
test-integration-packages/billing	1m 1s
test-integration-web	39s
test-integration-common	42s
test-web	49s
test-packages/billing	42s
test-common	42s
test-.agents	43s
test-sdk	44s
test-packages/agent-runtime	56s
test-cli	1m 11s
test-packages/internal	51s
	14m 52s

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