Actions: Address "held broken packages" issue

Error was:
  [..]
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   wine32:i386 : Depends: libwine:i386 (= 5.0-3ubuntu1) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.

1 files changed, 12 insertions, 5 deletions

diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 618a821..52566d6 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -16,6 +16,8 @@ jobs:
       matrix:
         include:
           - name: Native Linux
+            runs-on: ubuntu-20.04
+            qhelpgenerator_package: qhelpgenerator-qt5
             cmake_args: >-
               -DCMAKE_C_COMPILER=clang-13
               -DCMAKE_CXX_COMPILER=clang++-13
@@ -26,43 +28,48 @@ jobs:
             ldflags: >-
               -fsanitize=address
           - name: MingGW on Linux
+            # NOTE: This is avoiding 20.04 for libwine:i386 conflicts
+            runs-on: ubuntu-18.04
+            qhelpgenerator_package: qttools5-dev-tools
             cmake_args: >-
               -DCMAKE_C_COMPILER=i686-w64-mingw32-gcc
               -DCMAKE_CXX_COMPILER=i686-w64-mingw32-g++
               -DCMAKE_SYSTEM_NAME=Windows
               -DWIN32=ON
               -DMINGW=ON
-    runs-on: ubuntu-20.04
+    runs-on: ${{ matrix.runs-on }}
     steps:
       - uses: actions/checkout@v3.0.0
 
       - name: Add Clang/LLVM repositories (Non-MinGW)
         if: "${{ ! contains(matrix.cmake_args, 'mingw') }}"
         run: |-
+          set -x
+          source /etc/os-release
           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-          sudo add-apt-repository 'deb http://apt.llvm.org/focal/ llvm-toolchain-focal-13 main'
+          sudo add-apt-repository "deb http://apt.llvm.org/${UBUNTU_CODENAME}/ llvm-toolchain-${UBUNTU_CODENAME}-13 main"
 
       - name: Install build dependencies
         run: |-
+          set -x
           sudo apt-get update
           sudo apt-get install --yes --no-install-recommends -V \
               cmake \
               doxygen \
               graphviz \
               lzip \
-              qhelpgenerator-qt5 \
+              ${{ matrix.qhelpgenerator_package }} \
               qtchooser
 
       - name: Install build dependencies (MinGW)
         if: "${{ contains(matrix.cmake_args, 'mingw') }}"
         run: |-
           sudo dpkg --add-architecture i386  # for wine32
-          sudo apt-add-repository ppa:ondrej/php -y  # due to libwine:i386 conflicts
           sudo apt-get update  # again, due to new architecture
           sudo apt-get install --yes --no-install-recommends -V \
               mingw-w64 \
               wine-stable \
-              wine32
+              wine32:i386
 
       - name: Install build dependencies (Non-MinGW)
         if: "${{ ! contains(matrix.cmake_args, 'mingw') }}"