ci: Run self-hosted ci

Author: MarcoFalke

.cirrus.yml

@@ -111,15 +111,12 @@ task:
 
 task:
   name: '[previous releases, uses qt5 dev package and some depends packages] [unsigned char] [bionic]'
-  # For faster CI feedback, immediately schedule a task that compiles most modules
-  << : *CREDITS_TEMPLATE
   << : *GLOBAL_TASK_TEMPLATE
   depends_releases_cache:
     folder: "releases"
-  container:
-    image: ubuntu:bionic
+  << : *PERSISTENT_WORKER_TEMPLATE
   env:
-    << : *CIRRUS_EPHEMERAL_WORKER_TEMPLATE_ENV
+    << : *PERSISTENT_WORKER_TEMPLATE_ENV
     FILE_ENV: "./ci/test/00_setup_env_native_qt5.sh"
 
 task: