fix broken macro in transport.h (#15239)

[Core] RISC-V toolchain and picolibc fixes (#15109)

* [Core] Fix RISC-V toolchain installation

The risc-v toolchain is only available on distributions based on Debian 11+
so we check for their availability before installing them.

* [Core] Fix heap symbols and syscalls for picolibc

picolibc internally uses __heap_start and __heap_end instead of the
defacto chibios linker script standard __heap_base__ and __heap_end__
therefore we introduce these symbols as an alias. Usually all memory
used within QMK is statically allocated, but some algorithms make usage
of malloc and friends.

Also the timeval struct is not defined by picolibc for syscalls, therefore it
is declared as stub.

Rework encoders to enable asymmetric split keyboards (#12090)

Co-authored-by: Balz Guenat <balz.guenat@siemens.com>
Co-authored-by: Nick Brassel <nick@tzarc.org>

Merge remote-tracking branch 'origin/master' into develop

[Keymap] Initial simple keymap for ForeverAnApple (#14654)

Co-authored-by: Ryan <fauxpark@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Added Jels88 (#15090)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@users.noreply.github.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

Merge remote-tracking branch 'origin/master' into develop

Meletrix Zoom65 Refactor (#15222)

Minimon Index Tab touch-up (#15224)

Merge remote-tracking branch 'origin/master' into develop

Undead60M touch-up (#15214)

Lime rev1: fix Configurator implementation (#15213)

Merge remote-tracking branch 'origin/master' into develop

[Keyboard] Fix xox70 via layout (#15220)

 CI: Create GitHub Actions unit test workflow (#15223)

* Create GitHub Actions unit test workflow

* Create GitHub Actions unit test workflow - checkout submodules

* Create GitHub Actions unit test workflow - update job name

* Develop branch.

* Update .github/workflows/unit_test.yml

Co-authored-by: Joel Challis <git@zvecr.com>

* Update .github/workflows/unit_test.yml

Co-authored-by: Joel Challis <git@zvecr.com>

* builddefs

Co-authored-by: zvecr <git@zvecr.com>

[Bug] Fix timer include in override_wiring.c (#15221)

* [Bug] Fix timer include in override_wiring.c

* add platforms to keep parity with old method

Move tmk_core/common/<plat> (#13918)

Merge remote-tracking branch 'origin/master' into develop

Handwired Split65: Fix QMK Configurator Implementation (#15209)