[Build] Fix Nuget Test Pipeline AAR Testing with ReleaseVersionSuffix

[tianleiwu]

Description

This PR fixes failures in the Android Java API AAR testing stages of the NuGet packaging pipeline.

Background

The Android test stages in c-api-noopenmp-test-pipelines.yml were failing for two reasons:

1. Variable Resolution: The ReleaseVersionSuffix (e.g., -rc.1) was not being correctly passed between stages, causing bash script errors.
2. Version Mismatch: The test script attempted to construct the AAR filename using the local VERSION_NUMBER file, which often mismatched the version used to build the packaged artifact, causing cp failures.

Changes

• Fixed Variable Mapping: Explicitly mapped the ReleaseVersionSuffix output variable from the Setup stage to the Android_Java_API_AAR_Testing_Full and Final_AAR_Testing_Android_QNN stages.
• Robust AAR Selection: Updated the AAR copy logic in templates/android-java-api-aar-test.yml to use wildcard matching (*.aar) and select the first available file.
• Added Error Handling: Added a check to verify that an .aar file exists in the artifact directory, providing a clear error message and failing early if it's missing.

Files Modified

• tools/ci_build/github/azure-pipelines/c-api-noopenmp-test-pipelines.yml: Added stage variables for ReleaseVersionSuffix.
• tools/ci_build/github/azure-pipelines/templates/android-java-api-aar-test.yml: Updated AAR copy command with check/wildcard.

Testing

• Verified that $(ReleaseVersionSuffix) resolves correctly in the bash environment.
• Verified that the cp command correctly finds and rename-copies the AAR even when local version files differ from artifact versions.