[ET-VK] Fix VMA assertion caused by bool return type truncation #4311

Job	Run time
export-model-cuda-windows-artifact (nvidia, parakeet-tdt, quantized-int4-weight-only) / linux-job	23m 1s
export-model-cuda-windows-artifact (nvidia, diar_streaming_sortformer_4spk-v2, non-quantized) / linux-job	21m 31s
export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-4B-Realtime-2602, quantized-int4-tile... / linux-job	39m 45s
export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-3B-2507, quantized-int4-weight-only) / linux-job	29m 26s
export-model-cuda-windows-artifact (nvidia, parakeet-tdt, non-quantized) / linux-job	22m 46s
export-model-cuda-windows-artifact (mistralai, Voxtral-Mini-3B-2507, non-quantized) / linux-job	28m 1s
test-model-cuda-windows-e2e (nvidia, parakeet-tdt, non-quantized) / windows-job	24m 58s
test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-4B-Realtime-2602, quantized-int4-tile-packed) / windows-job	29m 40s
test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-3B-2507, quantized-int4-weight-only) / windows-job	30m 4s
test-model-cuda-windows-e2e (nvidia, parakeet-tdt, quantized-int4-weight-only) / windows-job	28m 58s
test-model-cuda-windows-e2e (mistralai, Voxtral-Mini-3B-2507, non-quantized) / windows-job	30m 9s
test-model-cuda-windows-e2e (nvidia, diar_streaming_sortformer_4spk-v2, non-quantized) / windows-job	28m 20s
	5h 36m 39s

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