Update to Ubuntu 24.04 in GitHub actions builds.

Author: insertinterestingnamehere

.github/workflows/CI.yml

@@ -10,7 +10,7 @@ concurrency:
 
 jobs:
   linux-gcc:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     continue-on-error: true
     strategy:
       matrix:
@@ -22,8 +22,6 @@ jobs:
       CXX: g++-${{ matrix.gcc_version }}
     steps:
     - uses: actions/checkout@v4
-    - if: ${{ matrix.gcc_version == '13' }}
-      run: sudo apt-add-repository 'ppa:ubuntu-toolchain-r/test' && break || sleep 1
     - name: install compiler
       run: sudo apt-get install gcc-${{ matrix.gcc_version }} g++-${{ matrix.gcc_version }}
     - if: ${{ matrix.topology != 'no' }}
@@ -41,20 +39,14 @@ jobs:
       timeout-minutes: 4
 
   linux-clang:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     continue-on-error: true
     strategy:
       matrix:
-        clang_version: [11, 12, 13, 14, 15, 16, 17, 18]
+        clang_version: [14, 15, 16, 17, 18]
         scheduler: [nemesis, sherwood, distrib]
         topology: [hwloc, binders, no]
         include:
-          - clang_version: 11
-            gcc_version: 10
-          - clang_version: 12
-            gcc_version: 11
-          - clang_version: 13
-            gcc_version: 11
           - clang_version: 14
             gcc_version: 11
           - clang_version: 15
@@ -70,12 +62,6 @@ jobs:
       CXX: clang++-${{ matrix.clang_version }}
     steps:
     - uses: actions/checkout@v4
-    - if: ${{ matrix.clang_version == '16' || matrix.clang_version == '17' || matrix.clang_version == '18' }}
-      run: |
-        wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - && break || sleep 1
-        sudo apt-add-repository 'deb https://apt.llvm.org/jammy/ llvm-toolchain-jammy-${{ matrix.clang_version }} main' && break || sleep 1
-    - if: ${{ matrix.gcc_version == '13' }}
-      run: sudo apt-add-repository 'ppa:ubuntu-toolchain-r/test' && break || sleep 1
     - name: install gcc
       run: sudo apt-get install gcc-${{ matrix.gcc_version }} g++-${{ matrix.gcc_version }}
     - name: install clang
@@ -95,7 +81,7 @@ jobs:
       timeout-minutes: 7
 
   linux-icx:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     continue-on-error: true
     strategy:
       matrix:
@@ -112,7 +98,6 @@ jobs:
         hwloc-ls --version
     - name: install gcc
       run: |
-        sudo apt-add-repository 'ppa:ubuntu-toolchain-r/test' && break || sleep 1
         sudo apt-get install gcc-13 g++-13
     - name: install icx
       run: |
@@ -176,7 +161,7 @@ jobs:
       timeout-minutes: 7
 
   linux-aocc:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     continue-on-error: true
     strategy:
       matrix:
@@ -193,7 +178,6 @@ jobs:
         hwloc-ls --version
     - name: install gcc
       run: |
-        sudo apt-add-repository 'ppa:ubuntu-toolchain-r/test' && break || sleep 1
         sudo apt-get install gcc-13 g++-13
     - name: install aocc
       run: |
@@ -268,7 +252,6 @@ jobs:
     - uses: actions/checkout@v4
     - if:  ${{ ! matrix.use_libcxx }}
       run: |
-        sudo apt-add-repository universe && break || sleep 1
         sudo apt-get install gcc-14 g++-14
     - name: install compiler
       run: |
@@ -312,7 +295,6 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - run: |
-        sudo apt-add-repository universe && break || sleep 1
         sudo apt-get install gcc-14 g++-14
     - if: ${{ matrix.compiler == 'clang' }}
       run: |
@@ -344,7 +326,6 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - run: |
-        sudo apt-add-repository universe && break || sleep 1
         wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add - && break || sleep 1
         sudo apt-add-repository 'deb https://apt.llvm.org/jammy/ llvm-toolchain-jammy-19 main' && break || sleep 1
         sudo apt-get install clang-format-19