Rerun the flaky ort-web tests automatically (#18187)

### Description
Retry 3 times at most if the web test fails.


### Motivation and Context
Web GPU tests are not stable.

From this link, we could find these ort-web tests are all in top 10
failing tasks.

https://dev.azure.com/onnxruntime/onnxruntime/_pipeline/analytics/stageawareoutcome?definitionId=161&contextType=build.

Generally, it could pass by manually rerunning it.
So, enable it to rerun automatically.

These test steps duration isn't long. So, it won't take too long to
retry.

tools/ci_build/github/azure-pipelines/templates/win-web-ci.yml

@@ -161,11 +161,13 @@ jobs:
     workingDirectory: '$(Build.SourcesDirectory)\js\web'
     displayName: 'Run ort-web tests (wasm,webgl,xnnpack backend)'
     condition: eq('${{ parameters.RunWebGpuTests }}', 'false')
+    retryCountOnTaskFailure: 3
   - script: |
      npm test -- -e=edge -b=webgl,wasm,xnnpack,webgpu $(webgpuCommandlineExtraFlags)
     workingDirectory: '$(Build.SourcesDirectory)\js\web'
     displayName: 'Run ort-web tests (ALL backends)'
     condition: eq('${{ parameters.RunWebGpuTests }}', 'true')
+    retryCountOnTaskFailure: 3
   - script: |
      npm test -- suite1 -e=edge -b=webgpu --io-binding=gpu-tensor $(webgpuCommandlineExtraFlags)
     workingDirectory: '$(Build.SourcesDirectory)\js\web'
@@ -180,10 +182,12 @@ jobs:
     workingDirectory: '$(Build.SourcesDirectory)\js\web'
     displayName: 'Run ort-web tests (Suite1, webgpu, IO-binding=gpu-location)'
     condition: eq('${{ parameters.RunWebGpuTests }}', 'true')
+    retryCountOnTaskFailure: 3
   - script: |
      npm test -- --webgl-texture-pack-mode -b=webgl -e=edge
     workingDirectory: '$(Build.SourcesDirectory)\js\web'
     displayName: 'Run ort-web tests - WebGL: packed mode'
+    retryCountOnTaskFailure: 3
   - script: |
      npm test -- --wasm-enable-proxy -b=wasm -e=edge
     workingDirectory: '$(Build.SourcesDirectory)\js\web'