Test with HTTPLIB_COMPILE on Windows

Author: falbrechtskirchinger

.github/workflows/test.yaml

@@ -128,6 +128,7 @@ jobs:
         -DCMAKE_BUILD_TYPE=Release
         -DCMAKE_TOOLCHAIN_FILE=${{ env.VCPKG_ROOT }}/scripts/buildsystems/vcpkg.cmake
         -DHTTPLIB_TEST=ON
+        -DHTTPLIB_COMPILE=ON
         -DHTTPLIB_REQUIRE_ZLIB=ON
         -DHTTPLIB_REQUIRE_BROTLI=ON
         -DHTTPLIB_REQUIRE_OPENSSL=${{ matrix.config.with_ssl && 'ON' || 'OFF' }}