fix(codebuild): return error on delete only when is not nil (#29042)

* fix(codebuild): return error on delete only when is not nil

Signed-off-by: Federico Barcelona <fede_rico_94@hotmail.com>

* chore: changelog

---------

Signed-off-by: Federico Barcelona <fede_rico_94@hotmail.com>
Co-authored-by: Jared Baker <jared.baker@hashicorp.com>

Author: tembleking

.changelog/29042.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_codebuild_project: Fix err check on delete
+```

internal/service/codebuild/project.go

@@ -1608,7 +1608,10 @@ func resourceProjectDelete(ctx context.Context, d *schema.ResourceData, meta int
 	_, err := conn.DeleteProjectWithContext(ctx, &codebuild.DeleteProjectInput{
 		Name: aws.String(d.Id()),
 	})
-	return sdkdiag.AppendErrorf(diags, "deleting CodeBuild project (%s): %s", d.Id(), err)
+	if err != nil {
+		return sdkdiag.AppendErrorf(diags, "deleting CodeBuild project (%s): %s", d.Id(), err)
+	}
+	return diags
 }
 
 func flattenProjectFileSystemLocations(apiObjects []*codebuild.ProjectFileSystemLocation) []interface{} {