CI: use clang-tidy not clang-tidy-11...

(which is no longer in debian stable).

Author: jgm

.github/workflows/ci.yml

@@ -18,8 +18,7 @@ jobs:
     - uses: actions/checkout@v4
     - name: Install clang-tidy
       run: |
-        sudo apt-get install -y clang-tidy-11
-        sudo update-alternatives --install /usr/bin/clang-tidy clang-tidy /usr/bin/clang-tidy-11 100
+        sudo apt-get install -y clang-tidy
     - name: lint with clang-tidy
       run: |
         make lint