Merge pull request #1058 from pimoroni/patch-pico-sdk-211

CI: Bump to Pico SDK 2.1.1.

Author: Gadgetoid

.github/workflows/cmake.yml

@@ -7,7 +7,7 @@ on:
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   BUILD_TYPE: Release
-  PICO_SDK_VERSION: 2.0.0
+  PICO_SDK_VERSION: 2.1.1
 
 jobs:
   build: