[action] goamd64 another attempt at fix

.goreleaser.yml

@@ -29,7 +29,8 @@ builds:
     binary: bin/step-ca
     ldflags:
       - -w -X main.Version={{.Version}} -X main.BuildTime={{.Date}}
-    goamd64: v1
+    goamd64:
+      - v1
   -
     id: step-cloudkms-init
     env:
@@ -51,7 +52,8 @@ builds:
     binary: bin/step-cloudkms-init
     ldflags:
       - -w -X main.Version={{.Version}} -X main.BuildTime={{.Date}}
-    goamd64: v1
+    goamd64:
+      - v1
   -
     id: step-awskms-init
     env:
@@ -73,7 +75,8 @@ builds:
     binary: bin/step-awskms-init
     ldflags:
       - -w -X main.Version={{.Version}} -X main.BuildTime={{.Date}}
-    goamd64: v1
+    goamd64:
+      - v1
 
 archives:
   -