install cmake as step

.gitea/workflows/build.yml

@@ -21,7 +21,6 @@ jobs:
         run: |
           apt-get update
           apt-get install -y \
-            cmake \
             make \
             python3 \
             python3-pip \
@@ -29,6 +28,24 @@ jobs:
             build-essential
           pip3 install PyYAML>=5.1
 
+      - name: Install CMake (from source)
+        run: |
+          apt-get update && apt-get install -y \
+            wget \
+            build-essential \
+            libssl-dev
+
+          CMAKE_VERSION=3.28.3
+          cd /tmp
+          wget -q https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}.tar.gz
+          tar -xzf cmake-${CMAKE_VERSION}.tar.gz
+          cd cmake-${CMAKE_VERSION}
+          ./bootstrap --prefix=/usr/local
+          make -j$(nproc)
+          make install
+
+          cmake --version
+
       - name: Configure Clang
         run: |
           cmake -S llvm -B build \