ci: enable ubuntu24.04 and deprecate 20.04

also enable clang 18 on 24.04

Signed-off-by: Carl Zhang <[email protected]>

Author: XinfengZhang

.github/workflows/install-clang.sh

@@ -10,13 +10,13 @@ fi
 if ! which $CC >/dev/null 2>&1; then
 	case $DISTRO in
 		"ubuntu-22.04") distro_name=jammy;;
-		"ubuntu-20.04") distro_name=focal;;
+		"ubuntu-24.04") distro_name=noble;;
 		*)
 		echo "Unknown distribution $DISTRO"
 		exit 1
 	esac
 	case $1 in
-		"14" | "15") llvm_version=$1;;
+		"18" | "15") llvm_version=$1;;
 		*)
 		echo "Unknown llvm version $1"
 		exit 1

.github/workflows/ubuntu.yml

@@ -12,8 +12,8 @@ jobs:
   test:
     strategy:
       matrix:
-        compiler: [clang-15, gcc]
-        os: [ubuntu-22.04, ubuntu-20.04]
+        compiler: [clang, gcc]
+        os: [ubuntu-24.04, ubuntu-22.04]
         build: [meson, autotools]
     runs-on: ${{ matrix.os }}
     env:
@@ -23,8 +23,11 @@ jobs:
     - name: 'Checkout'
       uses: actions/checkout@v4
     - name: 'Install toolchain'
-      if: ${{ (matrix.compiler == 'clang-15') }}
+      if: ${{ (matrix.compiler == 'clang') && (matrix.os == 'ubuntu-22.04') }}
       run: .github/workflows/install-clang.sh 15
+    - name: 'Install toolchain'
+      if: ${{ (matrix.compiler == 'clang') && (matrix.os == 'ubuntu-24.04') }}
+      run: .github/workflows/install-clang.sh 18
     - name: 'Install prerequisites'
       run: |
         sudo apt-get update