Tests

Bump third_party/openthread/repo from `eaa6261` to `652e3f2` #889

Job	Run time
REPL Tests - Darwin	0s
REPL Tests - Linux	49m 34s
Test Suites - Darwin (no-ble-asan-clang)	1h 34m 5s
Test Suites - Linux (no-ble-tsan-clang)	1h 36m 15s
Test Suites - Darwin (no-ble-tsan-clang)	2h 4m 24s
	6h 4m 18s

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