Docker: Install grpcio-tools from distro (#10358)

Use distro provided Python at build time (instead of the `python` images from dockerhub) and install `grpcio-tools` using the distro provided packages.

This should speed up build times, ESPECIALLY on riscv64 (where prebuilt `grpcio-tools` wheels are not provided on pip).

Co-authored-by: Copilot <copilot@github.com>

alpine.Dockerfile

@@ -4,12 +4,18 @@
 # trunk-ignore-all(hadolint/DL3013): Do not pin pip package versions
 
 # Ensure the Alpine version is updated in both stages of the container!
-FROM python:3.14-alpine3.23 AS builder
+FROM alpine:3.23 AS builder
 ARG PIO_ENV=native
-ENV PIP_ROOT_USER_ACTION=ignore
 
+# Enable Alpine community repository (for 'py3-grpcio-tools')
+RUN echo "https://dl-cdn.alpinelinux.org/alpine/v$(cut -d. -f1,2 /etc/alpine-release)/community" >> /etc/apk/repositories
+
+# Install Dependencies
+ENV PIP_ROOT_USER_ACTION=ignore
+ENV PIP_BREAK_SYSTEM_PACKAGES=1
 RUN apk --no-cache add \
         bash g++ libstdc++-dev linux-headers zip git ca-certificates libbsd-dev \
+        py3-pip py3-grpcio-tools \
         libgpiod-dev yaml-cpp-dev bluez-dev \
         libusb-dev i2c-tools-dev libuv-dev openssl-dev pkgconf argp-standalone \
         libx11-dev libinput-dev libxkbcommon-dev sqlite-dev sdl2-dev \