ci: expand matrix build targets to cover serial, WiFi micro-ROS, and …

[hippo5329]

Summary

Expands GitHub Actions CI test matrix (.github/workflows/reusable-platformio-ci.yml) to ensure comprehensive build verification across all supported microcontroller platforms and diagnostic utilities:

• Serial micro-ROS Firmware Targets: pico, pico2, esp32, esp32s2, esp32s3, gendrv.
• WiFi micro-ROS & Telemetry Targets: picow_wifi, pico2w_wifi, esp32_wifi, esp32s2_wifi, esp32s3_wifi, gendrv_wifi.
• Diagnostics Suites:
  • test_sensors: I2C scanner & 50Hz telemetry streamer across all supported microcontrollers.
  • test_motors: Motor spin, CPR verification & stopping distance profiler.
  • test_acc: Dynamic acceleration profiling bursts (100%, 50%, 25%).
  • adc_calibrate: ESP32 SAR ADC characterization and 4096-entry LUT generator.

Hardware Verification

• Tested and verified on physical hardware (RP2350 Pico 2, Waveshare General Driver Board, ESP32 DevKit).
• Verified clean compilation with zero warnings across all targets.

[mergify]

Tick the box to add this pull request to the merge queue (same as @mergifyio queue).

• Queue this pull request

[PaulBouchier]

Thank you very much for the ci improvements. I like that you unified all the diagnostics builds under one run, to limit the number of runs. You do good work!