add picomputer

.github/workflows/main_matrix.yml

@@ -95,6 +95,7 @@ jobs:
           - board: tlora-t3s3-v1
           - board: t-watch-s3
           - board: t-deck
+          - board: picomputer-s3
     uses: ./.github/workflows/build_esp32_s3.yml
     with:
       board: ${{ matrix.board }}