[clang-tools-extra] [clang-tidy][modernize] Replace memmove/memcpy with std::copy (PR #122940)

[kadir çetinkaya via cfe-commits]

kadircet wrote:

can you update `clang-tools-extra/clangd/TidyFastChecks.inc` in a follow up change, after this check lands in its final shape?

https://github.com/llvm/llvm-project/pull/122940