chore: bump to 0.3.8 #29

Job	Run time
build-and-check	2m 46s
test-integration-packages/internal	59s
test-integration-sdk	36s
test-integration-cli	40s
test-integration-packages/billing	53s
test-integration-common	42s
test-packages/billing	33s
test-.agents	37s
test-packages/agent-runtime	4m 3s
test-integration-web	42s
test-cli	1m 45s
test-packages/internal	42s
test-integration-packages/agent-runtime	36s
test-web	40s
test-sdk	1m 4s
test-common	1m 3s
	18m 21s

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