Update build.yml

.github/workflows/build.yml

@@ -17,10 +17,11 @@ jobs:
     steps:
       - name: Update and Install Software
         run: |
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
           sudo apt update
           sudo ACCEPT_EULA=Y apt -y --fix-missing --allow-downgrades upgrade
           sudo apt -y --allow-downgrades install g++-10-multilib linux-libc-dev binutils-arm-none-eabi p7zip-full pkg-config ppa-purge libpugixml-dev
-          sudo ppa-purge -y ppa:ubuntu-toolchain-r/test
+          sudo ppa-purge -y ppa:ubuntu-toolchain-r/test || true
           sudo dpkg --add-architecture i386
           sudo mkdir -pm755 /etc/apt/keyrings
           sudo wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key