Migrated CI to recent compilers

Author: JohanMabille

.github/workflows/linux.yml

@@ -17,17 +17,14 @@ jobs:
     strategy:
       matrix:
         sys:
-          - { compiler: 'gcc',   version: '7' }
-          - { compiler: 'gcc',   version: '8' }
-          - { compiler: 'gcc',   version: '9' }
           - { compiler: 'gcc',   version: '10' }
           - { compiler: 'gcc',   version: '11' }
-          - { compiler: 'clang', version: '8' }
-          - { compiler: 'clang', version: '10' }
-          - { compiler: 'clang', version: '12' }
-          - { compiler: 'clang', version: '13' }
-          - { compiler: 'clang', version: '14' }
-          - { compiler: 'clang', version: '15' }
+          - { compiler: 'gcc',   version: '12' }
+          - { compiler: 'gcc',   version: '13' }
+          - { compiler: 'clang', version: '17' }
+          - { compiler: 'clang', version: '18' }
+          - { compiler: 'clang', version: '19' }
+          - { compiler: 'clang', version: '20' }
 
     steps:
     - name: Setup compiler

.github/workflows/osx.yml

@@ -12,8 +12,9 @@ jobs:
     strategy:
       matrix:
         os:
-          - 11
-          - 12
+          - 13
+          - 14
+          - 15
     runs-on: macos-${{ matrix.os }}
     name: 'macos-${{ matrix.os }}'