GHA/windows: move libssh job from vcpkg to MSYS2

To avoid upstream issue where libssh no longer builds with vcpkg:
```
error: building libssh:x64-windows failed with: BUILD_FAILED
```
Ref: https://github.com/curl/curl/actions/runs/14206672441/job/39805869213?pr=16909#step:5:64

Bug: https://github.com/curl/curl/pull/16909#issuecomment-2770792320

Closes #16910

diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 981733d39007e86a21e677ae8a9caf47759d8dc9..e490d40749e01cc72bb5b30ee6c5e624bf71ffdf 100644 (file)
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -192,7 +192,11 @@ jobs:
           - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: 'skiprun', config: '--enable-debug --with-openssl --disable-threaded-resolver --disable-curldebug --enable-static=no --without-zlib', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-libssh2', name: 'default' }
           - { build: 'autotools', sys: 'mingw64', env: 'x86_64'      , tflags: ''       , config: '--enable-debug --with-openssl --enable-windows-unicode --enable-ares --with-openssl-quic', install: 'mingw-w64-x86_64-openssl mingw-w64-x86_64-nghttp3 mingw-w64-x86_64-libssh2', name: 'c-ares U' }
           - { build: 'cmake'    , sys: 'mingw64', env: 'x86_64'      , tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_ARES=ON', install: 'mingw-w64-x86_64-libssh2', type: 'Debug', name: 'schannel c-ares U' }
-          - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_GNUTLS=ON   -DENABLE_UNICODE=OFF -DUSE_NGTCP2=ON', install: 'mingw-w64-clang-x86_64-gnutls mingw-w64-clang-x86_64-nghttp3 mingw-w64-clang-x86_64-ngtcp2 mingw-w64-clang-x86_64-libssh2', type: 'Debug', name: 'gnutls' }
+          # WARNING: libssh uses hard-coded world-writable paths (/etc/..., ~/.ssh/) to
+          #          read its configuration from, making it vulnerable to attacks on
+          #          Windows. Do not use this component till there is a fix for these.
+          # https://github.com/curl/curl-for-win/blob/3951808deb04df9489ee17430f236ed54436f81a/libssh.sh#L6-L8
+          - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: ''       , config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_GNUTLS=ON   -DENABLE_UNICODE=OFF -DUSE_NGTCP2=ON -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON', install: 'mingw-w64-clang-x86_64-gnutls mingw-w64-clang-x86_64-nghttp3 mingw-w64-clang-x86_64-ngtcp2 mingw-w64-clang-x86_64-libssh', type: 'Debug', name: 'gnutls libssh' }
           - { build: 'cmake'    , sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON -DENABLE_UNICODE=ON -DENABLE_CURLDEBUG=ON', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', name: 'schannel R TrackMemory' }
           - { build: 'cmake'    , sys: 'clang64', env: 'clang-x86_64', tflags: 'skiprun', config: '-DENABLE_DEBUG=ON  -DBUILD_SHARED_LIBS=OFF -DCURL_USE_OPENSSL=ON  -DENABLE_UNICODE=OFF', install: 'mingw-w64-clang-x86_64-openssl mingw-w64-clang-x86_64-libssh2', type: 'Release', name: 'openssl', chkprefill: '_chkprefill' }
           - { build: 'cmake'    , sys: 'ucrt64' , env: 'ucrt-x86_64' , tflags: 'skiprun', config: '-DENABLE_DEBUG=OFF -DBUILD_SHARED_LIBS=ON  -DCURL_USE_SCHANNEL=ON', install: 'mingw-w64-ucrt-x86_64-libssh2', type: 'Release', test: 'uwp', name: 'schannel' }
@@ -821,19 +825,15 @@ jobs:
               -DCURL_USE_GSASL=ON
               -DUSE_ECH=ON
 
-          - name: 'mbedtls libssh'
-            install: 'brotli zlib zstd libpsl nghttp2 mbedtls libssh pkgconf gsasl'
+          - name: 'mbedtls'
+            install: 'brotli zlib zstd libpsl nghttp2 mbedtls libssh2 pkgconf gsasl'
             arch: 'x64'
             plat: 'windows'
             type: 'Debug'
             chkprefill: '_chkprefill'
-            # WARNING: libssh uses hard-coded world-writable paths (/etc/..., ~/.ssh/) to
-            #          read its configuration from, making it vulnerable to attacks on
-            #          Windows. Do not use this component till there is a fix for these.
-            # https://github.com/curl/curl-for-win/blob/3951808deb04df9489ee17430f236ed54436f81a/libssh.sh#L6-L8
             config: >-
               -DENABLE_DEBUG=ON
-              -DCURL_USE_LIBSSH2=OFF -DCURL_USE_LIBSSH=ON
+              -DCURL_USE_LIBSSH2=ON
               -DCURL_USE_SCHANNEL=OFF -DCURL_USE_MBEDTLS=ON
               -DCURL_USE_GSASL=ON