[ORT CPU][ORT GPU][WebNN] Wrong results to run some WebNN dequantizeLinear tests

[BruceDai]

Describe the issue

Wrong results to run some WebNN dequantizeLinear tests by both ORT default CPU EP and ORT default GPU EP.

Test	Error message
dequantizeLinear int32 1D tensor with float32 1D scale	assert_less_than_equal: assert_array_approx_equals_ulp: test dequantizeLinear float32 actual 0 should be close enough to expected -22405.495643615723 by ULP distance: expected a number less than or equal to 1n but got 1185876734n
dequantizeLinear with float32 3D scale as an intermediate node	assert_less_than_equal: assert_array_approx_equals_ulp: test transpose reshape dequantizeLinear float32 actual 0 should be close enough to expected -1.1202747821807861 by ULP distance: expected a number less than or equal to 1n but got 1066362154n
dequantizeLinear int32 1D tensor with float16 1D scale	assert_less_than_equal: assert_array_approx_equals_ulp: test dequantizeLinear float16 actual 0 should be close enough to expected -22400 by ULP distance: expected a number less than or equal to 1 but got 62840
dequantizeLinear with float16 3D scale as an intermediate node	assert_less_than_equal: assert_array_approx_equals_ulp: test transpose reshape dequantizeLinear float16 actual 0 should be close enough to expected -1.1201171875 by ULP distance: expected a number less than or equal to 1 but got 48251

/cc @fdwr PTAL, thanks!

To reproduce

1. Install Windows App SDK Stable 1.8.2 (1.8.251003001)
2. Install lates Edge Canary browser
3. Launch Edge Canary browser, navigate to about://flags enabled "Enables WebNN API" and "ONNX Runtime backend for WebNN" flags, then relaunch browser
4. Navigate to below test url, get above issue with wrong results

Test	Test URL
dequantizeLinear int32 1D tensor with float32 1D scale	https://wpt.live/webnn/conformance_tests/dequantizeLinear.https.any.html?device=cpu&tc=dequantizeLinear%20int32%201D%20tensor%20with%20float32%201D%20scale
dequantizeLinear with float32 3D scale as an intermediate node	https://wpt.live/webnn/conformance_tests/dequantizeLinear.https.any.html?device=cpu&tc=dequantizeLinear%20with%20float32%203D%20scale%20as%20an%20intermediate%20node
dequantizeLinear int32 1D tensor with float16 1D scale	https://wpt.live/webnn/conformance_tests/dequantizeLinear.https.any.html?device=cpu&tc=dequantizeLinear%20int32%201D%20tensor%20with%20float16%201D%20scale
dequantizeLinear with float16 3D scale as an intermediate node	https://wpt.live/webnn/conformance_tests/dequantizeLinear.https.any.html?device=cpu&tc=dequantizeLinear%20with%20float16%203D%20scale%20as%20an%20intermediate%20node

Note: Please replace cpu with gpu for device parameter in Test URL to test by ORT default GPU EP.

Urgency

No response

ONNX Runtime Installation

Released Package Windows App SDK Stable 1.8.2 (1.8.251003001)

ONNX Runtime Version or Commit ID

1.23.25.928

Execution Provider

ORT default CPU EP