Update ci.yml

Author: pdimov

.github/workflows/ci.yml

@@ -55,17 +55,20 @@ jobs:
             address-model: 32,64
           - toolset: gcc-10
             cxxstd: "11,14,17,2a"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: g++-10-multilib
             address-model: 32,64
           - toolset: gcc-11
             cxxstd: "11,14,17,20"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: g++-11-multilib
             address-model: 32,64
           - toolset: gcc-12
             cxxstd: "11,14,17,20,2b"
-            os: ubuntu-22.04
+            container: ubuntu:22.04
+            os: ubuntu-latest
             install: g++-12-multilib
             address-model: 32,64
           - toolset: gcc-13
@@ -236,7 +239,7 @@ jobs:
           tar -xf node-v20.9.0-linux-x64-glibc-217.tar.xz --strip-components 1 -C /node20217
           ldd /__e/node20/bin/node
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Install packages
         if: matrix.install