[ci] Update ARM GCC to v10.3

Author: salkinium

.github/workflows/windows_armcortexm.yml

@@ -27,15 +27,15 @@ jobs:
         shell: powershell
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -OutFile gcc-arm-none-eabi-win32.zip https://developer.arm.com/-/media/Files/downloads/gnu-rm/10-2020q4/gcc-arm-none-eabi-10-2020-q4-major-win32.zip
+          Invoke-WebRequest -OutFile gcc-arm-none-eabi-win32.zip https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.07/gcc-arm-none-eabi-10.3-2021.07-win32.zip
 
       - name: Install ARM Toolchain
         shell: powershell
         run: |
           Add-Type -Assembly "System.IO.Compression.Filesystem"
           [System.IO.Compression.ZipFile]::ExtractToDirectory("gcc-arm-none-eabi-win32.zip", "C:\")
-          dir C:\gcc-arm-none-eabi-10-2020-q4-major
-          echo "C:\gcc-arm-none-eabi-10-2020-q4-major\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+          dir C:\gcc-arm-none-eabi-10.3-2021.07
+          echo "C:\gcc-arm-none-eabi-10.3-2021.07\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
           rm gcc-arm-none-eabi-win32.zip
 
       - name: Show lbuild and arm-none-eabi-gcc Version Information