Install libusb for zephyr 4.3.0

Author: tannewt

.github/actions/deps/external/action.yml

@@ -6,8 +6,8 @@ inputs:
     default: restore
     type: choice
     options:
-    - cache
-    - restore
+      - cache
+      - restore
 
   port:
     required: false
@@ -27,7 +27,7 @@ runs:
       uses: carlosperate/arm-none-eabi-gcc-action@v1
       with:
         # When changing this update what Windows grabs too!
-        release: '14.2.Rel1'
+        release: "14.2.Rel1"
 
     # espressif
     - name: Get espressif toolchain
@@ -50,6 +50,13 @@ runs:
         echo >> $GITHUB_PATH "$PATH"
       shell: bash
 
+    - name: Get libusb
+      if: inputs.port == 'zephyr-cp'
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y libusb-1.0-0-dev
+      shell: bash
+
     # common
     - name: Cache python dependencies
       if: inputs.port != 'espressif' && inputs.port != 'zephyr-cp'