updated linux version

Author: benapetr

.github/workflows/huggle.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ubuntu-version: [18.04, 20.04]
+        ubuntu-version: [22.04]
         qt-version: [5.12.10, 5.15.2]
     steps:
       - uses: actions/checkout@v2