tests

Streaming changes according to Schwab_Trader_API_-_Streamer_Guide.pdf #426

Job	Run time
readthedocs-test (ubuntu-latest, 3.12, py312)	25s
test (windows-latest, 3.10, py310)	2m 3s
test (windows-latest, 3.11, py311)	3m 5s
test (windows-latest, 3.12, py312)	2m 27s
test (ubuntu-latest, 3.10, py310)	58s
test (ubuntu-latest, 3.11, py311)	43s
test (ubuntu-latest, 3.12, py312)	2m 39s
test (macos-latest, 3.10, py310)	1m 13s
test (macos-latest, 3.11, py311)	1m 40s
test (macos-latest, 3.12, py312)	41s
	15m 54s

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