esp/ci: Fix MinGW standalone libs build

Use docker with Clang based MinGW instead of GCC

Author: gerekon

.gitlab-ci.yml

@@ -17,7 +17,7 @@ variables:
   ESP_LLVM_EMBEDDED_TOOLCHAIN_REF: "llvm_release_19"
   ESP_GNU_TOOLCHAIN_VER: "14.2.0_20241119"
   CROSS_ARM_IMAGE: $CI_DOCKER_REGISTRY/llvm-build-cross-arm:2
-  CROSS_WIN_IMAGE: $CI_DOCKER_REGISTRY/llvm-build-cross-win:2
+  CROSS_WIN_IMAGE: $CI_DOCKER_REGISTRY/llvm-build-cross-win:3
   DIST_DIR: "dist"
   BUILD_DIR: "build"
   GITLAB_SERVER_URL: https://gitlab-ci-token:${CI_JOB_TOKEN}@${GITLAB_HTTPS_SERVER}