Use POSIXStorage from lib manager

Author: aliphys

Diff for: .github/workflows/compile-examples.yml

@@ -63,7 +63,7 @@ jobs:
             # Install the library from the local path.
             - source-path: ./
             - name: Arduino_USBHostMbed5
-            - source-path: https://github.com/arduino-libraries/Arduino_POSIXStorage
+            - name: Arduino_POSIXStorage
             # Additional library dependencies can be listed here.
             # See: https://github.com/arduino/compile-sketches#libraries
           sketch-paths: |
@@ -100,4 +100,4 @@ jobs:
         # If actions/download-artifact failed, there are no artifacts to report from.
         if: steps.download-artifact.outcome == 'success'
         with:
-          sketches-reports-source: ${{ env.SKETCHES_REPORTS_PATH }}
+          sketches-reports-source: ${{ env.SKETCHES_REPORTS_PATH }}