Replace a type used by the service (#15216)

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# Description

<!--- Please include a summary of the change and which issue is fixed.
Please also include relevant motivation and context. -->

A type that is used by the Pulumi Cloud code was removed in
[#15028](https://github.com/pulumi/pulumi/pull/15028/files#diff-52b25675ac0d98614d062fc1d1c9e60759f905cf7c60a9339402a62c23cc2c55L32-L33)
- this PR replaces it.

Fixes # (issue)

## Checklist

- [ ] I have run `make tidy` to update any new dependencies
- [ ] I have run `make lint` to verify my code passes the lint check
  - [ ] I have formatted my code using `gofumpt`

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- [ ] I have added tests that prove my fix is effective or that my
feature works
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- [ ] I have run `make changelog` and committed the
`changelog/pending/<file>` documenting my change
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- [ ] Yes, there are changes in this PR that warrants bumping the Pulumi
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changelog/pending/20240123--sdk-go--replace-a-deleted-type-used-by-pulumi-cloud-code.yaml

@@ -0,0 +1,4 @@
+changes:
+- type: fix
+  scope: sdk/go
+  description: Replace a deleted type used by Pulumi Cloud code.

pkg/backend/filestate/backend.go

@@ -1036,8 +1036,8 @@ func (b *localBackend) apply(
 		_, changes, updateErr = engine.Refresh(update, engineCtx, op.Opts.Engine, opts.DryRun)
 	case apitype.DestroyUpdate:
 		_, changes, updateErr = engine.Destroy(update, engineCtx, op.Opts.Engine, opts.DryRun)
-	case apitype.StackImportUpdate:
-		contract.Failf("unexpected stack import event")
+	case apitype.StackImportUpdate, apitype.RenameUpdate:
+		contract.Failf("unexpected %s event", kind)
 	default:
 		contract.Failf("Unrecognized update kind: %s", kind)
 	}

pkg/backend/httpstate/backend.go

@@ -1358,8 +1358,8 @@ func (b *cloudBackend) runEngineAction(
 		_, changes, updateErr = engine.Refresh(u, engineCtx, op.Opts.Engine, dryRun)
 	case apitype.DestroyUpdate:
 		_, changes, updateErr = engine.Destroy(u, engineCtx, op.Opts.Engine, dryRun)
-	case apitype.StackImportUpdate:
-		contract.Failf("unexpected stack import event")
+	case apitype.StackImportUpdate, apitype.RenameUpdate:
+		contract.Failf("unexpected %s event", kind)
 	default:
 		contract.Failf("Unrecognized update kind: %s", kind)
 	}

pkg/backend/httpstate/client/client.go

@@ -642,8 +642,8 @@ func (pc *Client) CreateUpdate(
 		endpoint = "refresh"
 	case apitype.DestroyUpdate:
 		endpoint = "destroy"
-	case apitype.StackImportUpdate:
-		contract.Failf("Stack import updates are not supported")
+	case apitype.StackImportUpdate, apitype.RenameUpdate:
+		contract.Failf("%s updates are not supported", kind)
 	default:
 		contract.Failf("Unknown kind: %s", kind)
 	}

sdk/go/common/apitype/history.go

@@ -29,6 +29,9 @@ const (
 	PreviewUpdate UpdateKind = "preview"
 	// RefreshUpdate is an update that came from a refresh operation.
 	RefreshUpdate UpdateKind = "refresh"
+	// RenameUpdate is an update that changes the stack name or project name of a Pulumi program.
+	// NOTE: Do not remove this type - it is used by Pulumi Cloud code.
+	RenameUpdate UpdateKind = "rename"
 	// DestroyUpdate is an update which removes all resources.
 	DestroyUpdate UpdateKind = "destroy"
 	// StackImportUpdate is an update that entails importing a raw checkpoint file.