fix: build gpgme 1.24.2 separately on windows

Author: saturneric

.github/workflows/testing-nightly.yml

@@ -162,6 +162,16 @@ jobs:
           cd ${{github.workspace}}
         if: runner.os == 'Linux'
 
+      - name: Build GpgME (Windows)
+        shell: msys2 {0}
+        run: |
+          git clone --depth 1 --branch gpgme-1.24.2 git://git.gnupg.org/gpgme.git ${{github.workspace}}/third_party/gpgme
+          cd ${{github.workspace}}/third_party/gpgme
+          ./autogen.sh
+          ./configure --enable-maintainer-mode --enable-languages=cpp --disable-gpg-test && make -j4
+          make install
+        if: runner.os == 'Windows'
+
       - name: Build googletest (Linux)
         run: |
           git clone --depth 1 --branch v1.15.2 https://github.com/google/googletest.git ${{github.workspace}}/third_party/googletest