build: compile against fmt 10 and 11 - #3722
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fmt 10 made formatter::format() const and fmt 11 moved fmt::join to ranges.h, so ArrayFire no longer built against a system fmt (Arch, Homebrew, Ubuntu 24.10+). Make every custom formatter's format() const, include ranges.h where join is used, and turn the Version formatter's in-place flag mutation into locals so "{:Mm}" still renders 1.2 rather than 1.2.0. Output is unchanged under the pinned fmt 8. Fixes #3692 and #3596.
debug.hpp and NodeIO.hpp included spdlog/fmt/bundled/format.h directly, which does not exist when spdlog is built against an external fmt. Nothing in src includes these headers today, but they now compile under both layouts.
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fmt 10 made formatter::format() const and fmt 11 moved fmt::join to ranges.h, so ArrayFire no longer builds against a system fmt on Arch, Homebrew, or recent Ubuntu:
Every custom formatter's format() is now const, ranges.h is included where join is used, and the Version formatter combines its parsed flags into locals instead of mutating them, so
{:Mm}still renders 1.2 rather than 1.2.0 (the patch on #3596 lost that, and the OpenCL backend uses it for -cl-std). The two debug headers that nothing includes also stop naming spdlog's bundled fmt directly. Built the CPU backend against fmt 11.2 / spdlog 1.15 and against the pinned fmt 8.1 / spdlog 1.9, and the CUDA backend against fmt 8; a standalone probe compiles the CUDA and debug formatter headers under both fmt versions with identical output. The OpenCL file was not built here. Fixes #3692 and #3596.