Update ci.yml

Author: pdimov

.github/workflows/ci.yml

@@ -18,14 +18,14 @@ jobs:
       matrix:
         include:
           - toolset: gcc-4.8
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             cxxstd: 11
             install: g++-4.8
           - toolset: gcc-5
             cxxstd: 11
-            os: ubuntu-latest
             container: ubuntu:18.04
+            os: ubuntu-latest
             install: g++-5
           - toolset: gcc-7
             os: ubuntu-20.04
@@ -34,19 +34,21 @@ jobs:
             os: ubuntu-20.04
           - toolset: gcc-11
             os: ubuntu-22.04
+          - toolset: gcc-13
+            os: ubuntu-24.04
           - toolset: clang
             compiler: clang++-15
             cxxstd: 20
             os: ubuntu-22.04
             install: clang-15
           - toolset: clang
-            os: macos-11
+            os: macos-13
             cxxstd: 11
           - toolset: clang
-            os: macos-12
+            os: macos-14
             cxxstd: 14
           - toolset: clang
-            os: macos-13
+            os: macos-15
             cxxstd: 17
 
     runs-on: ${{matrix.os}}