FreeBSD build

Added x86_64-unknown-freebsd to target matrix

Signed-off-by: n-connect <info@nconnect.hu>

.github/workflows/release.yml

@@ -18,6 +18,7 @@ jobs:
           - i686-unknown-linux-musl
           - armv7-unknown-linux-musleabihf
           - aarch64-unknown-linux-musl
+          - x86_64-unknown-freebsd
 
     steps:
       - uses: actions/checkout@v3