[azure] Build debug config which is around 25% faster.

azure-pipelines.yml

@@ -20,6 +20,6 @@ jobs:
       mkdir build
       cd build
       call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\Tools\vsdevcmd" -arch=x64
-      cmake .. -G Ninja -DCMAKE_C_COMPILER=cl.exe -DCMAKE_CXX_COMPILER=cl.exe -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DOGS_EIGEN_DYNAMIC_SHAPE_MATRICES=ON -DOGS_USE_PCH=OFF
+      cmake .. -G Ninja -DCMAKE_C_COMPILER=cl.exe -DCMAKE_CXX_COMPILER=cl.exe -DCMAKE_BUILD_TYPE=Debug -DBUILD_SHARED_LIBS=OFF -DOGS_EIGEN_DYNAMIC_SHAPE_MATRICES=ON -DOGS_USE_PCH=OFF
       ninja -j 2
       ninja -j 2 tests