ci: use run command instead of action to install clang

Author: Totto16

.github/workflows/cpp-linter.yml

@@ -20,10 +20,13 @@ jobs:
           pip install meson --break-system-packages
 
       - name: Setup Clang
-        uses: egor-tensin/setup-clang@v1
-        with:
-          version: 19
-          platform: x64
+        run: |
+          wget https://apt.llvm.org/llvm.sh
+          chmod +x llvm.sh
+          sudo ./llvm.sh 19
+          echo "CC=clang-19" >> "$GITHUB_ENV"
+          echo "CXX=clang++-19" >> "$GITHUB_ENV"
+          echo "OBJC=clang-19" >> "$GITHUB_ENV"
 
       - name: Prepare compile_commands.json
         run: |