[Actions] Add temp workaround for Linux libstdc++ runner issue

.github/workflows/build-qx-linux.yml

@@ -72,6 +72,13 @@ jobs:
         credentials: ${{ secrets.qt_ffynnon_cred }}
     - name: Update package index
       run: sudo apt-get update
+    - name: WORKAROUND FOR https://github.com/actions/runner-images/issues/8659
+      if: matrix.os == 'ubuntu-22.04'
+      run: |
+        echo "TEMPORARY WORKAROUND FOR GITHUB RUNNER BUG #8659\n\nRemoving GCC 13 as it breaks Clang14"
+        sudo rm -f /etc/apt/sources.list.d/ubuntu-toolchain-r-ubuntu-test-jammy.list
+        sudo apt-get update
+        sudo apt-get install -y --allow-downgrades libc6=2.35-0ubuntu3.4 libc6-dev=2.35-0ubuntu3.4 libstdc++6=12.3.0-1ubuntu1~22.04 libgcc-s1=12.3.0-1ubuntu1~22.04
     - name: Install OpenGL lib
       run: sudo apt-get install libglu1-mesa-dev
     - name: Install XCB Related libs