Update to backends/tc/CMakeLists.txt updated version release-v17-rc8 and sha256 hash #3853

Job	Run time
test-ubuntu20 (Unity ON, GTest ON)	34m 11s
test-ubuntu20 (Unity OFF, GTest OFF)	42m 46s
test-ubuntu22-tofino	42m 48s
test-ubuntu22	28m 50s
	2h 28m 35s

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