Build macOS Universal Binary

Author: Brianwithay21

.github/workflows/release.yml

@@ -27,8 +27,11 @@ jobs:
         macos: |
           rustup target add x86_64-apple-darwin
           cargo build --release --target x86_64-apple-darwin
+          rustup target add aarch64-apple-darwin
+          cargo build --release --target aarch64-apple-darwin
           mkdir cfn-guard-v2-${{ matrix.os }}
-          cp ./target/x86_64-apple-darwin/release/cfn-guard ./cfn-guard-v2-${{ matrix.os }}/
+          cargo install cargo-lipo
+          lipo -create target/x86_64-apple-darwin/release/cfn-guard target/aarch64-apple-darwin/release/cfn-guard -output ./cfn-guard-v2-${{ matrix.os }}/cfn-guard
           cp README.md ./cfn-guard-v2-${{ matrix.os }}/
           tar czvf ./cfn-guard-v2-${{ matrix.os }}.tar.gz ./cfn-guard-v2-${{ matrix.os }}
         linux: |