Remove Arrow C++ dependency from C++ tests

[vyasr]

Summary

• remove the Arrow C++ fetch/link from C++ test configuration
• stop compiling the legacy Arrow C++ interop test sources while keeping the nanoarrow host/device/stream coverage
• add a small direct Arrow C host producer test for from_arrow_host
• replace the Arrow tdigest oracle in percentile_approx_text coverage with fixed gold cases

Resolves #23445

Validation

• configure-cudf-cpp
• cmake --build cpp/build/conda/cuda-12.9/release --target INTEROP_TEST QUANTILES_TEST -j4
• ./INTEROP_TEST --gtest_filter=FromArrowHostDeviceTest.DirectArrowCProducerTable
• ./QUANTILES_TEST --gtest_filter=PercentileApproxTest.ReductionGold:PercentileApproxTest.GroupByGold:PercentileApproxTest.GroupByWithNullsGold
• { ldd INTEROP_TEST; ldd QUANTILES_TEST; } | grep -i arrow || true produced no output
• git diff --check

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[vyasr]

/ok to test

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/ok to test

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[vyasr]

/ok to test