fix(ci): Pass version arg correctly to llvm.sh

`sudo bash -c "$(cmd)" 22` passes 22 to sudo, not to the script.
Use `wget | sudo bash -s 22` to correctly pass the version argument.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: antonis

.github/workflows/buildandtest.yml

@@ -55,7 +55,7 @@ jobs:
       # This is required for using a newer version of clang-format.
       - name: Setup clang-format V22
         run: |
-          sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" 22
+          wget -O - https://apt.llvm.org/llvm.sh | sudo bash -s 22
           sudo apt-get install -y clang-22 clang-format-22 lld-22 lldb-22
 
       - name: Set clang-format V22 as default