Add arm64 to release config

Author: stuartleeks

.goreleaser.yml

@@ -9,6 +9,7 @@ builds:
   goarch:
     - 386
     - amd64
+    - arm64
   main: ./cmd/devcontainerx/
   ldflags:
     - -s -w -X main.version={{.Version}} -X main.commit={{.ShortCommit}} -X main.date={{.Date}} -X "main.goversion={{.Env.GOVERSION}}"