temporarily disabled sdrplay_source build for CI

.github/workflows/cmake.yml

@@ -26,7 +26,7 @@ jobs:
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory
       # We'll use this as our working directory for all subsequent commands
-      run: cmake -E make_directory ${{runner.workspace}}/build
+      run: cmake -E make_directory ${{runner.workspace}}/build -DOPT_BUILD_SDRPLAY_SOURCE=OFF
 
     - name: Configure CMake
       # Use a bash shell so we can use the same syntax for environment variable