skip over matrix for macos x86_64 binary builds (deprecated arch)

Author: wileyj

.github/workflows/github-release.yml

@@ -90,6 +90,8 @@ jobs:
             cpu: armv7
           - arch: macos # excludes macos-armv7
             cpu: armv7
+          - arch: macos # excludes macos-x64
+            cpu: x86_64
     steps:
       - name: Build Binary (${{ matrix.arch }}_${{ matrix.cpu }})
         uses: stacks-network/actions/stacks-core/release/create-source-binary@main