Require at least one element in LSI if (#3623)

Author: kddejong

scripts/update_schemas_manually.py

@@ -617,6 +617,12 @@
                             {
                                 "if": {
                                     "type": "object",
+                                    "properties": {
+                                        "LocalSecondaryIndexes": {
+                                            "type": "array",
+                                            "minItems": 1,
+                                        }
+                                    },
                                     "required": ["LocalSecondaryIndexes"],
                                 },
                                 "then": {

src/cfnlint/data/schemas/patches/extensions/all/aws_dynamodb_table/manual.json

@@ -5,6 +5,12 @@
   "value": [
    {
     "if": {
+     "properties": {
+      "LocalSecondaryIndexes": {
+       "minItems": 1,
+       "type": "array"
+      }
+     },
      "required": [
       "LocalSecondaryIndexes"
      ],

src/cfnlint/data/schemas/providers/us_east_1/aws-dynamodb-table.json

@@ -3,6 +3,12 @@
  "allOf": [
   {
    "if": {
+    "properties": {
+     "LocalSecondaryIndexes": {
+      "minItems": 1,
+      "type": "array"
+     }
+    },
     "required": [
      "LocalSecondaryIndexes"
     ],