Update docs and diag_suppress preprocessor directives

• Updated preprocessor directives to remove diag_suppress deprecation warning during compilation with CUDA v11.5.
• Updated docs for CUDA builds outside CERN network.

added Documentation cleanup labels

assigned to @raaij

added 1 commit

• ad7bc691 - Modified order of solutions to help cmake find nvcc.

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added RTA label

/ci-test --platforms=x86_64-el9-gcc12+cuda12_1-opt+g

added ci-test-triggered label

• [2023-05-10 23:57] Validation started with lhcb-master-mr#7817

approved this merge request

resolved all threads

This cannot cause any effect on the CIs as we don't have CUDA 11.5 installed anywhere. Being such a small change, local testing is enough. Merging.

merged

mentioned in commit 04762bf2

mentioned in issue Moore#574 (closed)