.github/workflows/test.yml: add a workaround for Windows jobs

Currently, RI2 Ruby 3.2 and ruby-loco mswin builds contain OpenSSL 3.4
DLLs while mingw-w64 and vcpkg provide OpenSSL 3.5 headers. Overwrite
the builtin DLLs with 3.5 ones so that we can compile and test using the
same OpenSSL version.

The root cause has been fixed in RI2 Ruby 3.4.

Author: rhenium

.github/workflows/test.yml

@@ -36,6 +36,20 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true # `bundle install` and cache
 
+      # See https://github.com/oneclick/rubyinstaller2/issues/60
+      # The builtin DLLs are preferred over the mingw-w64/vcpkg DLLs. This is a
+      # temporary workaround until they update the DLLs to OpenSSL 3.5.x.
+      - name: Update RI2/mswin builtin DLLs
+        run: |
+          $dst = "$((Get-Item (Get-Command ruby).Definition).DirectoryName)\ruby_builtin_dlls"
+          if ("${{ matrix.ruby }}" -eq "mswin") {
+            $src = "C:\vcpkg\installed\x64-windows\bin"
+          } else {
+            $src = "$((Get-Item (Get-Command ruby).Definition).DirectoryName)\..\msys64\ucrt64\bin"
+          }
+          Copy-Item "$src\libcrypto-3-x64.dll", "$src\libssl-3-x64.dll" $dst
+        if: ${{ matrix.os == 'windows-latest' && (matrix.ruby == '3.2' || matrix.ruby == '3.3' || matrix.ruby == 'mswin') }}
+
       # Enable the verbose option in mkmf.rb to print the compiling commands.
       - name: enable mkmf verbose
         run:  echo "MAKEFLAGS=V=1" >> $GITHUB_ENV