install step

Author: pabuhler

.github/workflows/cmake.yml

@@ -114,7 +114,7 @@ jobs:
     - name: Configure CMake
       working-directory: ${{github.workspace}}/build
       shell: bash
-      run: cmake $GITHUB_WORKSPACE -DLIBSRTP_TEST_APPS=ON  ${{ matrix.cmake-crypto-enable}} ${{env.cmake-crypto-dir}}
+      run: cmake $GITHUB_WORKSPACE -DLIBSRTP_TEST_APPS=ON  ${{ matrix.cmake-crypto-enable}} ${{env.cmake-crypto-dir}} -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/install
 
     - name: Build
       working-directory: ${{github.workspace}}/build
@@ -125,3 +125,8 @@ jobs:
       working-directory: ${{github.workspace}}/build
       shell: bash
       run: ctest
+
+    - name: Install
+      working-directory: ${{github.workspace}}/build
+      shell: bash
+      run: cmake --install .