sysutils/conky{,-awesome}: Update to 1.25.1

Features

• feat(wayland): honor own_window_hints via layer-shell
• nvidia_nvml: add video encoder and decoder utilization metrics
• feat: display output backend heuristic
• nvidia_nvml: add PCIe throughput monitoring
• feat: add own_window_namespace config setting for wlr-layer-shell

Bug Fixes

• fix: add missing x11.h imports
• fix(wayland): blocking forever in wl_display_dispatch
• Fix utmp issue 2252
• fix: wayland: guard shm surfaces against invalid buffer dimensions
• fix(text): honor use_spacer for percentage values
• hwmon/i2c/platform: properly handle power entries
• fix(x11): skip XI2 button grab on desktop windows without mouse hook
• fix(wayland): fall back to ftruncate when posix_fallocate unsupported

Misc

• chore: bump version to v1.24.3
• build(deps): bump the actions group with 2 updates
• chore: switch to C++20; enable -Wpedantic
• refactor: remove init code from Lua backend settings
• build(deps): bump actions/cache from 5 to 6 in the actions group
• build(deps): bump the actions group across 1 directory with 3 updates
• build: remove BUILD_HSV_GRADIENT, BUILD_LIBXML2 and BUILD_MIXER_ALSA, which have no effect
• chore: relax mise config
• docs: documen

ChangeLog: https://github.com/brndnmtthws/conky/releases/tag/v1.25.1

• fix: make O_CLOEXEC fallback order-proof in c++wrap.hh
• fix: crash on startup when generating text before first draw