eng, fix analyze, move mvn auth step before verify typespec step

[weidongxu-microsoft]

verify pipeline https://dev.azure.com/azure-sdk/internal/_build/results?buildId=6169732&view=logs&s=6884a131-87da-5381-61f3-d7acc3b91d76&j=b70e5e73-bbb6-5567-0939-8415943fadb9

Description

fix analyze, move mvn auth step before verify typespec step

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• The pull request does not introduce [breaking changes]
• CHANGELOG is updated for new features, bug fixes or other significant changes.
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[Copilot]

Pull request overview

This PR updates the CI Analyze job pipeline to ensure Maven feed authentication happens before running the Swagger/TypeSpec code generation verification step, which invokes Maven during TypeSpec regeneration.

Changes:

• Move the /eng/pipelines/templates/steps/maven-authenticate.yml step earlier in the Analyze job, ahead of Compare-CurrentToCodegeneration.ps1.
• Ensure Maven is authenticated before TypeSpec verification runs mvn codesnippet:update-codesnippet.