read subtree: accept path with trailing '/' #5603

Job	Run time
build-and-check	2m 43s
test-integration-packages/billing	1m 2s
test-integration-web	38s
test-integration-common	48s
test-integration-packages/internal	1m 8s
test-integration-cli	47s
test-integration-sdk	42s
test-integration-packages/agent-runtime	47s
test-packages/agent-runtime	48s
test-common	40s
test-packages/billing	49s
test-sdk	41s
test-packages/internal	51s
test-cli	59s
test-web	49s
test-.agents	46s
	14m 58s

Provide feedback