CI: Bump GCC to 13.3.Rel1.

.github/workflows/cmake.yml

@@ -56,11 +56,15 @@ jobs:
         path: pico-extras
         submodules: false  # lwip breaks audio submodule fetching
 
+    - name: Install Arm GNU Toolchain (arm-none-eabi-gcc)
+      uses: carlosperate/arm-none-eabi-gcc-action@v1
+      with:
+        release: '13.3.Rel1'
+
     # Linux deps
     - name: Install deps
-      if: runner.os == 'Linux'
       run: |
-        sudo apt update && sudo apt install ccache gcc-arm-none-eabi
+        sudo apt update && sudo apt install ccache
 
     - name: Create Build Environment
       run: cmake -E make_directory ${{runner.workspace}}/build

.github/workflows/micropython.yml

@@ -71,7 +71,7 @@ jobs:
     - name: Install Arm GNU Toolchain (arm-none-eabi-gcc)
       uses: carlosperate/arm-none-eabi-gcc-action@v1
       with:
-        release: '9-2020-q2'
+        release: '13.3.Rel1'
 
     - name: Install CCache
       run: |