Use universal2 openssl in macOS CI (#7428)

Author: alex

.github/workflows/ci.yml

@@ -366,14 +366,14 @@ jobs:
 
       - name: Download OpenSSL
         run: |
-          python .github/workflows/download_openssl.py macos openssl-macos-x86-64
+          python .github/workflows/download_openssl.py macos openssl-macos-universal2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Tests
         run: |
           CRYPTOGRAPHY_SUPPRESS_LINK_FLAGS=1 \
-            LDFLAGS="${HOME}/openssl-macos-x86-64/lib/libcrypto.a ${HOME}/openssl-macos-x86-64/lib/libssl.a" \
-            CFLAGS="-I${HOME}/openssl-macos-x86-64/include -Werror -Wno-error=deprecated-declarations -Wno-error=incompatible-pointer-types-discards-qualifiers -Wno-error=unused-function -mmacosx-version-min=10.10 -march=core2 $EXTRA_CFLAGS" \
+            LDFLAGS="${HOME}/openssl-macos-universal2/lib/libcrypto.a ${HOME}/openssl-macos-universal2/lib/libssl.a" \
+            CFLAGS="-I${HOME}/openssl-macos-universal2/include -Werror -Wno-error=deprecated-declarations -Wno-error=incompatible-pointer-types-discards-qualifiers -Wno-error=unused-function -mmacosx-version-min=10.10 -march=core2 $EXTRA_CFLAGS" \
             tox -vvv -r --  --color=yes --wycheproof-root=wycheproof
         env:
           TOXENV: ${{ matrix.PYTHON.TOXENV }}