WIP: swap CI branch

.github/workflows/build-clang-doxy.yml

@@ -38,6 +38,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -108,6 +109,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
         repository: adafruit/ci-arduino
+        ref: add-itsybitsy-rp2040
         path: ci
     - name: Checkout Board Definitions
       uses: actions/checkout@v4
@@ -207,6 +209,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -244,7 +247,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arduino-platform: ["picow_rp2040_tinyusb"]
+        arduino-platform: ["picow_rp2040_tinyusb", "itsybitsy_rp2040_tinyusb"]
     steps:
     - uses: actions/setup-python@v4
       with:
@@ -258,6 +261,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -308,6 +312,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -348,6 +353,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -405,6 +411,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: Install CI-Arduino
       run: bash ci/actions_install.sh
@@ -465,6 +472,7 @@ jobs:
     - uses: actions/checkout@v4
       with:
          repository: adafruit/ci-arduino
+         ref: add-itsybitsy-rp2040
          path: ci
     - name: pre-install
       run: bash ci/actions_install.sh