upgrade pause_before (#10654)

command/hcl2_upgrade.go

@@ -981,6 +981,9 @@ func writeProvisioner(typeName string, provisioner *template.Provisioner) []byte
 	if provisioner.Timeout > 0 {
 		cfg["timeout"] = provisioner.Timeout.String()
 	}
+	if provisioner.PauseBefore > 0 {
+		cfg["pause_before"] = provisioner.PauseBefore.String()
+	}
 	body.AppendNewline()
 	jsonBodyToHCL2Body(block.Body(), cfg)
 	return provisionerContent.Bytes()

command/test-fixtures/hcl2_upgrade/complete/expected.pkr.hcl

@@ -241,9 +241,10 @@ build {
   }
 
   provisioner "shell-local" {
-    inline  = ["sleep 100000"]
-    only    = ["amazon-ebs"]
-    timeout = "5s"
+    inline       = ["sleep 100000"]
+    only         = ["amazon-ebs"]
+    pause_before = "5s"
+    timeout      = "5s"
   }
 
   post-processor "amazon-import" {

command/test-fixtures/hcl2_upgrade/complete/input.json

@@ -189,6 +189,7 @@
                 "amazon-ebs"
             ],
             "timeout": "5s",
+            "pause_before": "5s",
             "inline": [
                 "sleep 100000"
             ]