pico: switch to community supported platform/core and add pico2 support

As the develpment of pico/pico2 support on offical platformio had been
stalled for years, we have switched to platform/core contributed by
earlephilhower and maxgerhardt. It includes the latest toolchains gcc
14.3 and a lot of drivers/libraries.

The micro-ROS common.meta defines "-DRCUTILS_NO_64_ATOMIC=ON", which
enables atomic ops functions in micro-ros/rcutils. But pico-sdk has
build-in atomic ops, so they conflict and result in link errors. An
user meta is added to avoid the errors.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>

Author: hippo5329

.github/workflows/ci.yml

@@ -8,13 +8,13 @@ on:
 jobs:
 
     micro_ros_platformio:
-        runs-on: ubuntu-22.04
-        container: ubuntu:22.04
+        runs-on: ubuntu-24.04
+        container: ubuntu:24.04
 
         strategy:
           fail-fast: false
           matrix:
-            platform: [teensy41, teensy40, teensy36, teensy35, teensy31, due, zero, olimex_e407, esp32dev, nanorp2040connect, portenta_h7_m7, teensy41_eth, nanorp2040connect_wifi, portenta_h7_m7_wifi, esp32dev_wifi, esp32dev_ethernet, portenta_h7_m7_humble, portenta_h7_m7_jazzy, portenta_h7_m7_kilted, portenta_h7_m7_rolling, teensy41_custom, pico]
+            platform: [teensy41, teensy40, teensy36, teensy35, teensy31, due, zero, olimex_e407, esp32dev, nanorp2040connect, portenta_h7_m7, teensy41_eth, nanorp2040connect_wifi, portenta_h7_m7_wifi, esp32dev_wifi, esp32dev_ethernet, portenta_h7_m7_humble, portenta_h7_m7_jazzy, portenta_h7_m7_kilted, portenta_h7_m7_rolling, teensy41_custom, pico, pico2]
 
         steps:
         - uses: actions/checkout@v3

ci/atomic.meta

@@ -0,0 +1,9 @@
+{
+    "names": {
+        "rcutils": {
+            "cmake-args": [
+                "-DRCUTILS_NO_64_ATOMIC=OFF"
+            ]
+        }
+    }
+}

ci/platformio.ini

@@ -121,20 +121,35 @@ lib_deps =
     ../
 
 [env:nanorp2040connect]
-platform = raspberrypi
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
 board = nanorp2040connect
+board_build.core = earlephilhower
 framework = arduino
 lib_ldf_mode = chain+
 board_microros_transport = serial
+board_microros_user_meta = atomic.meta
 lib_deps =
     ../
-    
+
 [env:pico]
-platform = raspberrypi
-board = pico
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board = rpipico
+board_build.core = earlephilhower
+framework = arduino
+lib_ldf_mode = chain+
+board_microros_transport = serial
+board_microros_user_meta = atomic.meta
+lib_deps =
+    ../
+
+[env:pico2]
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+board = rpipico2
+board_build.core = earlephilhower
 framework = arduino
 lib_ldf_mode = chain+
 board_microros_transport = serial
+board_microros_user_meta = atomic.meta
 lib_deps =
     ../
 
@@ -175,12 +190,15 @@ lib_deps =
     ../
 
 [env:nanorp2040connect_wifi]
-platform = raspberrypi
+ platform = https://github.com/maxgerhardt/platform-raspberrypi.git
 board = nanorp2040connect
+board_build.core = earlephilhower
 framework = arduino
+board_microros_user_meta = atomic.meta
 board_microros_transport = wifi_nina
+lib_ldf_mode = chain+
 lib_deps =
-    arduino-libraries/WiFiNINA@^1.8.13
+    arduino-libraries/WiFiNINA
     ../
 
 ; Custom transports