Draft: E2E test: fix project templates spec

What does this MR do and why?

Resolves #440529 (closed)

data-testid had been updated in !143297 (merged) but the E2E tests were not updated

MR acceptance checklist

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How to set up and validate locally

bundle exec rspec qa/specs/features/ee/browser_ui/3_create/repository/project_templates_spec.rb