use containers

Author: powerboat9

.github/workflows/ccpp.yml

@@ -20,6 +20,7 @@ jobs:
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
+    container: ubuntu:22.04
 
     steps:
     - uses: actions/checkout@v4
@@ -105,6 +106,7 @@ jobs:
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
+    container: ubuntu:22.04
 
     steps:
     - uses: actions/checkout@v4
@@ -190,6 +192,7 @@ jobs:
       LC_ALL: C.UTF-8
 
     runs-on: ubuntu-22.04
+    container: ubuntu:22.04
 
     steps:
     - uses: actions/checkout@v4