Fix a concurrency bug in `OP_WAIT_TIMEOUT` #6409

Job	Run time
build-and-test (macos-15, 24, mbedtls@3)	5m 18s
build-and-test (macos-14, 24, mbedtls@3)	5m 6s
build-and-test (macos-15, 27, mbedtls@3)	4m 4s
build-and-test (macos-14, 26, mbedtls@3)	4m 19s
build-and-test (macos-15, 25, mbedtls@3)	6m 43s
build-and-test (macos-15-intel, 25, mbedtls@3)	5m 29s
build-and-test (macos-14, 27, mbedtls@3)	4m 20s
build-and-test (macos-15-intel, 24, mbedtls@3)	6m 40s
build-and-test (macos-14, 28, mbedtls@3, -DAVM_DISABLE_JIT=OFF)	9m 30s
build-and-test (macos-15, 28, mbedtls@3)	4m 33s
build-and-test (macos-14, 25, mbedtls@3)	4m 9s
build-and-test (macos-15-intel, 28, mbedtls@3)	6m 54s
build-and-test (macos-15, 28, mbedtls@3, -DAVM_DISABLE_JIT=OFF)	9m 19s
build-and-test (macos-14, 28, mbedtls@3)	3m 58s
build-and-test (macos-26, 28, mbedtls@3)	4m 40s
build-and-test (macos-15-intel, 27, mbedtls@3)	7m 32s
build-and-test (macos-15, 26, mbedtls@3)	5m 49s
build-and-test (macos-26, 27, mbedtls@3)	5m 0s
build-and-test (macos-26, 25, mbedtls@3)	3m 42s
build-and-test (macos-15-intel, 26, mbedtls@3)	7m 11s
build-and-test (macos-26, 24, mbedtls@3)	4m 53s
build-and-test (macos-26, 26, mbedtls@3)	4m 27s
build-and-test (macos-15-intel, 28, mbedtls@3, -DAVM_DISABLE_JIT=OFF)	12m 34s
	2h 16m 10s

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