[CI] Switch to ubuntu-22.04 runner

relates to tonistiigi/binfmt#215

Author: Paulchen-Panther

.github/workflows/qt5_6.yml

@@ -36,7 +36,7 @@ jobs:
 
   Linux:
     name: 🐧 ${{ matrix.os.description }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix: