Use bootstrapper for build environment installation.

[tzarc]

Description

As discussed on Discord, base container upgrade for bootstrapper.

[tzarc]

qmk doctor is clean:

% docker run --rm -it -v $(realpath ../qmk_firmware):/qmk_firmware -v $(realpath ..):/qmk_userspace qmk_base_container:latest
qmk@461fabe42dc7:/qmk_firmware$ qmk doctor
Ψ QMK Doctor is checking your environment.
Ψ CLI version: 1.1.8
Ψ QMK home: /qmk_firmware
Ψ Detected Linux (Debian GNU/Linux 12 (bookworm)).
Ψ Found QMK tools distribution directory: /home/qmk/.local/share/qmk
Ψ Found QMK toolchains: linuxX64:baremetalARM:62a4eba, linuxX64:baremetalAVR:62a4eba, linuxX64:baremetalRV32:62a4eba
Ψ Testing userspace candidate: /qmk_userspace -- Valid `qmk.json`
Ψ QMK userspace: /qmk_userspace
Ψ Userspace enabled: True
Ψ Git branch: bootstrap
Ψ Repo version: 0.29.8
Ψ - Latest bootstrap: 2025-06-20 21:58:37 +1000 (d28377237f) -- Merge remote-tracking branch 'upstream/master' into bootstrap
Ψ - Latest upstream/master: 2025-07-17 11:09:17 -0600 (7098252252) -- Add `null65ansi` keyboard (#25464)
Ψ - Latest upstream/develop: 2025-07-19 23:23:28 -0600 (65cce9105d) -- Refactor `helix/rev3_{4,5}rows` (#25430)
Ψ - Common ancestor with upstream/master: 2025-06-19 17:24:37 -0400 (6626084cb8) -- fix incorrect damapad layout macros (#25364)
Ψ - Common ancestor with upstream/develop: 2025-06-19 17:24:37 -0400 (6626084cb8) -- fix incorrect damapad layout macros (#25364)
Ψ CLI installed in virtualenv.
Ψ All dependencies are installed.
Ψ Found arm-none-eabi-gcc version 15.1.0
Ψ Successfully compiled using arm-none-eabi-gcc
Ψ Successfully tested arm-none-eabi-binutils using arm-none-eabi-size
Ψ Found avr-gcc version 15.1.0
Ψ Successfully compiled using avr-gcc
Ψ Successfully tested avr-binutils using avr-size
Ψ Found avrdude version t
Ψ Found dfu-programmer version 1.1.0
Ψ Found dfu-util version 0.11-dev
Ψ Found diff version 3.8
Ψ Found dos2unix version 7.4.3
Ψ Found git version 2.39.5
Ψ Found make version 4.3
Ψ Submodules are up to date.
Ψ Submodule status:
Ψ - lib/chibios: 2025-05-15 08:25:11 +0000 --  (8bd61b8043)
Ψ - lib/chibios-contrib: 2025-01-08 21:03:31 +0100 --  (3ac181e4)
Ψ - lib/googletest: 2021-06-11 06:37:43 -0700 --  (e2239ee6)
Ψ - lib/lufa: 2022-08-26 12:09:55 +1000 --  (549b97320)
Ψ - lib/vusb: 2022-06-13 09:18:17 +1000 --  (819dbc1)
Ψ - lib/printf: 2022-06-29 23:59:58 +0300 --  (c2e3b4e)
Ψ - lib/pico-sdk: 2025-04-20 21:24:29 +1000 --  (d0c5cac)
Ψ - lib/lvgl: 2022-04-11 04:44:53 -0600 --  (e19410f8)
Ψ QMK is ready to go