Fix windows CI error (RustPython#5068)

Author: youknowone

.github/workflows/ci.yaml

@@ -127,7 +127,7 @@ jobs:
         shell: bash
         run: |
           choco install llvm openssl --no-progress
-          echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >>$GITHUB_ENV
+          echo "OPENSSL_DIR=C:\Program Files\OpenSSL-Win64" >> $GITHUB_ENV
         if: runner.os == 'Windows'
       - name: Set up the Mac environment
         run: brew install autoconf automake libtool
@@ -252,7 +252,7 @@ jobs:
         shell: bash
         run: |
           choco install llvm openssl --no-progress
-          echo "OPENSSL_DIR=C:\Program Files\OpenSSL" >>$GITHUB_ENV
+          echo "OPENSSL_DIR=C:\Program Files\OpenSSL-Win64" >>$GITHUB_ENV
         if: runner.os == 'Windows'
       - name: Set up the Mac environment
         run: brew install autoconf automake libtool openssl@3