[CI] bugfix(R): Fix testthat compatibility issues with version 3.3.0 #2524
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[CI] my subjectWhat changes were proposed in this PR?
Fixes R build failures caused by breaking changes in testthat 3.3.0 (released Nov 13, 2025). The failures started appearing on Nov 24, 2025 when GitHub Actions updated to the latest testthat version.
How was this patch tested?
All R tests should pass on ci
Did this PR include necessary documentation updates?