Running linuxdeployqt on ubuntu-22.04 fails

Author: afbjorklund

.github/workflows/linux.yml

@@ -7,7 +7,8 @@ on:
       - main
 jobs:
   build-linux:
-    runs-on: ubuntu-latest
+    # AppImage requires ubuntu focal
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744
       - uses: jurplel/install-qt-action@b3ea5275e37b734d027040e2c7fe7a10ea2ef946

.github/workflows/tag-and-release.yml

@@ -12,7 +12,8 @@ jobs:
           git tag "v$VERSION"
           git push origin "v$VERSION"
   build-linux-release:
-    runs-on: ubuntu-latest
+    # AppImage requires ubuntu focal
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744
       - uses: jurplel/install-qt-action@b3ea5275e37b734d027040e2c7fe7a10ea2ef946