Bug 1909288 [wpt PR 47235] - WebNN: Change argMin/argMax to take scal…

…ar axis, a=testonly

Automatic update from web-platform-tests
WebNN: Change argMin/argMax to take scalar axis

This CL changes argMin/argMax to take scalar axis to align with the spec
change [1].

The changes include the definition of IDL and mojo, the implementation
of DirectML, TfLite and CoreML backend and the related unit tests and
WPT tests.

[1] webmachinelearning/webnn#724

Bug: 352359898
Change-Id: Iee68b568331570a6ea51fd17b2195c602d4cff59
Cq-Include-Trybots: luci.chromium.try​:win11-blink-rel,mac14.arm64-blink-rel,mac14-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5721028
Reviewed-by: Alex Gough <ajgo@chromium.org>
Reviewed-by: Phillis Tang <phillis@chromium.org>
Commit-Queue: Bin Miao <bin.miao@intel.com>
Reviewed-by: ningxin hu <ningxin.hu@intel.com>
Cr-Commit-Position: refs/heads/main@{#1331567}

--

wpt-commits: acd785862cc0cd8a52e83ac6db95403e0e6e5450
wpt-pr: 47235

testing/web-platform/tests/webnn/conformance_tests/arg_min_max.https.any.js

@@ -10,4 +10,4 @@
 
 // https://webmachinelearning.github.io/webnn/#api-mlgraphbuilder-argminmax
 
-runWebNNConformanceTests(['argMin', 'argMax'], buildOperationWithSingleInput);
+runWebNNConformanceTests(['argMin', 'argMax'], buildArgMinMax);