CI: Install dependency USBHostMbed5 as dependency.

Required for Audio_Playback.

Author: aentinger

.github/workflows/compile-examples.yml

@@ -49,6 +49,7 @@ jobs:
           libraries: |
             # Install the library from the local path.
             - source-path: ./
+            - source-url: https://github.com/facchinm/USBHostMbed5
           sketch-paths: |
             - examples
           enable-deltas-report: true