Disable custom fireworks deployment #5948

Job	Run time
build-and-check	3m 2s
test-integration-packages/internal	1m 5s
test-integration-web	1m 9s
test-packages/internal	42s
test-integration-packages/agent-runtime	41s
test-packages/billing	47s
test-integration-cli	42s
test-integration-sdk	1m 19s
test-integration-common	35s
test-cli	55s
test-packages/agent-runtime	38s
test-integration-packages/billing	1m 5s
test-sdk	1m 16s
test-.agents	51s
test-common	41s
test-web	1m 26s
	16m 54s

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