fix: Fixes mongodbatlas_search_index create and update when attribu…

…te `wait_for_index_build_completion` is used (#2887)

* includes READY in target states for mongodbatlas_search_index

* changelog

* TestAccSearchIndex_withWaitForIndexBuildCompletion

* add PENDING state

* add BUILDING state

* Revert "TestAccSearchIndex_withWaitForIndexBuildCompletion"

This reverts commit 5b0fbe3.

.changelog/2887.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/mongodbatlas_search_index: Fixes resource create and update when `wait_for_index_build_completion` attribute is used
+```

internal/service/searchindex/resource_search_index.go

@@ -275,8 +275,8 @@ func resourceUpdate(ctx context.Context, d *schema.ResourceData, meta any) diag.
 	if d.Get("wait_for_index_build_completion").(bool) {
 		timeout := d.Timeout(schema.TimeoutUpdate)
 		stateConf := &retry.StateChangeConf{
-			Pending:    []string{"IN_PROGRESS", "MIGRATING"},
-			Target:     []string{"STEADY"},
+			Pending:    []string{"PENDING", "BUILDING", "IN_PROGRESS", "MIGRATING"},
+			Target:     []string{"READY", "STEADY"},
 			Refresh:    resourceSearchIndexRefreshFunc(ctx, clusterName, projectID, indexID, connV2),
 			Timeout:    timeout,
 			MinTimeout: 1 * time.Minute,
@@ -449,8 +449,8 @@ func resourceCreate(ctx context.Context, d *schema.ResourceData, meta any) diag.
 	if d.Get("wait_for_index_build_completion").(bool) {
 		timeout := d.Timeout(schema.TimeoutCreate)
 		stateConf := &retry.StateChangeConf{
-			Pending:    []string{"IN_PROGRESS", "MIGRATING"},
-			Target:     []string{"STEADY"},
+			Pending:    []string{"PENDING", "BUILDING", "IN_PROGRESS", "MIGRATING"},
+			Target:     []string{"READY", "STEADY"},
 			Refresh:    resourceSearchIndexRefreshFunc(ctx, clusterName, projectID, indexID, connV2),
 			Timeout:    timeout,
 			MinTimeout: 1 * time.Minute,