support for Darwin Arm64 (M1) builds (argoproj-labs#99)

Author: oboukili

.goreleaser.yml

@@ -7,14 +7,14 @@ builds:
       - -trimpath
     ldflags:
       - '-s -w -X main.version={{.Version}} -X main.commit={{.Commit}}'
-    goos:
-      - windows
-      - linux
-      - darwin
-    goarch:
-      - amd64
-      - arm
-      - arm64
+    targets:
+      - darwin_arm64
+      - darwin_amd64
+      - linux_amd64
+      - linux_arm
+      - linux_arm64
+      - windows_amd64
+      - windows_arm
     binary: '{{ .ProjectName }}_v{{ .Version }}'
 archives:
   - format: zip