ci: test on pico-sdk 2.0.0

Author: urish

.github/workflows/ci-pico-sdk.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sdk_version: [1.2.0, 1.3.1, 1.4.0, 1.5.1]
+        sdk_version: [1.2.0, 1.3.1, 1.4.0, 1.5.1, 2.0.0]
     steps:
       - uses: actions/checkout@v4
       - name: Cache Pico SDK