test: make sure cmake 3.10 works

.github/workflows/main.yml

@@ -25,6 +25,10 @@ jobs:
       - uses: actions/checkout@v3
         with:
           submodules: 'recursive'
+      - uses: jwlawson/actions-setup-cmake@v2
+        with:
+          cmake-version: '3.10'
+          github-api-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Check versions
         run: |
           set -e
@@ -34,7 +38,7 @@ jobs:
         shell: bash
       - uses: awalsh128/cache-apt-pkgs-action@v1
         with:
-          packages: libglib2.0-dev cmake
+          packages: libglib2.0-dev
           version: 1.0
       - name: Run tests
         run: |